Thank you, Charles. In the second quarter, benefiting from strong mobile traffic growth and a reviving search advertising market, Sogou saw its growth back to the fast lane. Revenues totaled RMB1.45 billion, up 26% from a year ago, exceeding our prior guidance and continuously outpaced the industry growth. As of June, aggregate search traffic grew by 24% from a year ago, of which mobile traffic jumped over 50% and represented nearly 80% of the overall traffic. This kept our market share in an upward trajectory. On Sogou Mobile Keyboard, our market-leading Chinese input application, our user base continued to expand rapidly. According to iResearch, the user base of Sogou mobile keyboard increased by more than 70% over the past year, solidifying our position as the #3 mobile application in China in terms of DAUs. During the second quarter, we continued to promote AI-empowered technology and product innovation. We integrated our proprietary AI technologies like question-and-answer, words and machine translation into our core product, including Sogou search and Sogou input method. Our strong Q&A-based search capability which caters to the increasing amount of search queries in question format provides direct answers to users instead of only displaying links. This has greatly improved user experience on mobile search. For voice, in the second quarter, Sogou Mobile Keyboard supported 260 million voice inputs on a daily basis, up more than 80% from a year ago. For machine translation, our Sogou English search channel, we're able to fully translate English web pages into Chinese. And on Sogou Mobile Keyboard, we can convert user's voice into text input from Chinese to English. In May at WMT, Workshop on Machine Translation international academic competition, Sogou won the global championship for Chinese-to-English machine translation. Our partnership with Tencent on product cooperation also progresses well. For example, Sogou Baike, one of the largest online encyclopedias in China, now provides exclusive content for search function within Weixin. Sogou's machine-based Q&A capability also provides technical support to Tencent Cloud Xiaowei, a smart device -- a services open platform. Financially, our total revenues in the second quarter reached $211 million, up 20% year-on-year and a 26% increase in RMBterms. Mobile search revenues accounted for 76% of total search revenues compared with 49% last year. GAAP net income was $23.5 million, compared to $33 million net income, excluding a one-off item from the same period in 2016. I will now turn the call over to Joanna, who will walk you through financials.