Because he and his friend were confused about a question, so they decided to ask their teacher, Cheng Yi.

由于他和他的朋友就一个问题存在疑问，所以他们决定去向老师程颐请教。

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When Cheng Yi woke up, he found there were two "snowman" standing outside; more than a foot of snow had accumulated!

等老师醒来，发现门外站着两个“雪人”，地上的雪早已一尺多深了。

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The Securities and Exchange Commission filed civil charges against Cheng Yi Liang, 57, an FDA employee since 1996, alleging he illegally traded in advance of at least 27 different FDA announcements involving 19 publicly traded companies.

WSJ: FDA Chemist Charged With Insider Trading