Thanks Rong. The solid first quarter revenue growth was based on the performance of different business lives, in the cities we currently cover. Let me review the business by different revenue streams. Small Class, which consists of Xueersi Peiyou Small Class, Firstleap, Mobby and some other educational programs and services accounted for 80.7% of total net revenue almost unchanged from the first quarter last year. Xueersi Peiyou Small Class which remains our core business, represented 71.4% of total revenue almost unchanged from 71% in the same period of the prior year. Net revenue from Xueersi Peiyou Small Class was up by 72% in US dollar terms and 58% in RMB terms, while enrollment increased by 87%. This growth rate reflects the healthy growth in both Peiyou Offline and Online Class. By now, we offer Xueersi Peiyou Online courses most of which are tailored to offline students incremental needs. In major cities of our network, Xueersi Peiyou Online currently offers regular and short-term courses and other promotion courses. Excluding contribution from Peiyou Online in both the first quarter of fiscal 2018 and 2019, the Peiyou Offline Small Class revenue increased by 66.7% in US dollars terms and 53.1% in RMB terms, while enrollments increased by 34.4%. In Q1 fiscal year 2019, Peiyou Online accounted for 3.1% of total Xueersi Peiyou Small Class revenue and 28.1% of total Xueersi Peiyou Small Class enrollments. Revenue and enrollments from Peiyou Online were minimal in Q1 fiscal year 2018. Xueersi Peiyou Small Class revenue from top five cities; Beijing, Shanghai, Guangzhou, Shenzhen, Nanjing grew by 68.4% in US dollar terms year-over-year and accounted for 60% of Xueersi Peiyou Small Class business. Revenue generated from cities other than the top five grew by 77.7% in US dollar terms and the other cities accounted for the remaining 40% of the Xueersi Peiyou Small Class business. The growth momentum is supported by market demand and incremental ramp up is expected of the enrollment from other earlier class room expansion. We make ongoing assets to diversify our courses offerings. Chinese and English courses continue to grow at a solid pace. By the end of July, 2018 we will offer Chinese classes in 15 cities and English classes in 24 cities. Furthermore, in our 10 Mobby centers, we have started to offer a wider variety of activities, such as, programming, science, and others. Chinese, English and the subjects of Mobby and Firstleap are still in the early stage of development. We see a steady and healthy growth of all these varieties of subjects. And going forward, they will gradually contribute more to our overall business. Looking ahead, we will continue to rollout more subjects in more cities and further diversify our course offerings. Our one-on-one business, including the overseas consulting business had a steady first quarter and achieved year-over-year revenue growth of 23.2% in US dollar terms and 13.2% in RMB terms mostly from regular price increases. One-on-one, including the overseas consulting business, accounted for 9.5% of total revenue compared to 13.2% in the first quarter of fiscal 2018. Turning to our capacity expansion, we added a net of 36 learning centers across a wide spectrum of cities in Q1 fiscal year 2019. We opened 46 new learning centers across 20 cities and closed down 10 learning centers based on our standard operations and regulatory requirements. During the quarter, we added 850 Peiyou Small Class classrooms. Most Small Class classrooms were added in Tianjin, Beijing, Shenyang, Shenzhen, Dalian, Wuhan, Hangzhou, Shanghai, Shijiazhuang and Wenzhou. Meanwhile, we continue to enter new cities at pace. In the first quarter, we entered into one new city Huizhou. During the quarter, we added a net of 29 Small Class learning centers, seven Firstleap Small Class learning centers and one Mobby center. We closed a net of one one-on-one learning center. By the end of May, we had 630 learning centers in 43 cities across China, of which 455 were Peiyou Small Class, 10 were Mobby Small Class, 70 were Firstleap Small Class and 95 were one-on-one. Looking into Q2, we expect to add five to 10 Peiyou Small Class learning centers. These estimates reflect our current expectation which may vary due to the attempt of the demand. Moving now to our Online business. First quarter revenue from xueersi.com grew by 212.8% in US dollar terms year-over-year and 187.9% in RMB terms, while enrollments grew by 144.7% year-over-year. Online contributed 9% of total revenues and 23% of the total enrollments this quarter, compared to 4.9% of total revenue and 18% of total enrollments in the same period of the prior year respectively. Finally, other revenues are mostly from online advertising business. It represented 0.8% of total revenue versus 1.1% in the same period of last fiscal year 2018. Let me know go through some other key financial points for the first quarter of fiscal year 2019. In the quarter, Small Class ASP decreased by 5.3% in US dollar terms and 13% the RMB terms year-over-year. Xueersi Peiyou Small Classes ASP decreased by 15.5% in RMB year-over-year, excluding the impact of Xueersi Peiyou Online, the Xueersi Peiyou Offline Small Class ASP in RMB terms increased by 13.9%. That is 13.9%. Zhikang one-on-one ASP in US dollar terms increased by 23.9% and the 13.8% in RMB due to the gradual price increased in the comparable quarter. Online course ASP increased by 27.9% in US dollar terms and 17.4% in RMB first quarter partially due to the Online Enrollments shift from the pre-recording model to live broadcasting model. Cost of revenues increased by 53.9% to US$261.1 million from US$169.6 million in the same quarter one year-ago. The increase in cost of revenues were mainly due to an increase in rental costs and teacher compensation. Non-GAAP cost of revenues, which excluded share-based compensation expenses, increased by 53.9% to US$260.9 million, from US$169.6 million in the same year-ago period. In the first fiscal quarter, gross profit was US$289.6 million, up 90.1% year-over-year from US$152.3 million in the same year-ago period. Gross margin for the first quarter was 52.6% as compared to 47.3% for the same period of last year. Sales and marketing expenses increased by 117.4% to US$94.5 million from US$43.5 million in the same period of last fiscal year. The increase was primarily a result of more marketing promotion activities to expand our customer base and brand enhancement, as well as a rise in the compensation to sales and marketing staff to support a greater number of programs and service offerings compared to the same period in the prior year. Operating income increased by 160.3% to US$75 million, non-GAAP operating income increased by 127.8% year-over-year to US$90 million. Other income was US$8.7 million for the first quarter of fiscal year 2019, mainly related to the fair value changes of equity securities in accordance with the update of Accounting Standards Update 2016-01 and Accounting Standards Update 2018-03 to the Accounting Standards Codification 321 adopted on March 1, 2018. Income tax expense was US$17.3 million in the first quarter of fiscal year 2019, compared to US$8.4 million same year-ago period. Basic and diluted net income per ADS were US$0.12 and US$0.11 respectively in the first quarter of fiscal year 2019. Non-GAAP basic and diluted net income per ADS, which excluded share-based compensation expenses were both US$0.14. From the balance sheet as of May 31, 2018 we had a total of US$1929.2 million in cash, cash equivalents and short-term investment compared to US$1498.9 million as of February 28, 2018. Capital expenditures for the first fiscal quarter were US$28.7 million, representing a decrease of US$0.9 million from US$29.6 million in the same year-ago period. As of May 31, 2018, US$90.8 million was reclassified from deferred revenue to accrued expenses and other current liabilities. Upon adoption of revenue from customers – of revenue from contracts this customers, the Topic 606 on March 1, 2018. It mainly represented estimated amounts of tuition collected that maybe refunded in the future if students withdraw from a course for any remaining classes. I would like to refer you to the note in the earnings release that provides further detailed explanation of this reclassification. The Company's deferred revenue balance, after the reclassification, was US$1,328.5 million, compared to US$959.4 million as of May 31, 2017, representing a year-over-year increase of 38.5%. Deferred revenue primarily consisted of the tuition collected in advance for the summer and fall semesters of Xueersi Small Classes. Now, I will hand the call back to Mr. Luo to briefly update you on our strategic execution and provide the business outlook of the next quarter. Rong please.