expert at

基本解释

You may think you're a good lover, but God wants you to become a great lover, a skilled lover, a master lover.Yet, most people never learn how to love.You can become an expert at relationships.
你可能认为自己是一个很好的情人，但上帝却想让你变成一个更伟大的情人，爱的能力，爱的主宰，大多数的人从来没有学会去爱，然而你可以在这层关系里成为一个专家。
I am an expert at using your product and can write your user guide with my eyes closed.
我是使用贵公司产品方面的专家，闭着眼睛我都能替你写出用户指南来
Second, sometimes they are expert at their craft but not expert at explaining how they do it.
第二，有时他们在自己的领域是专家，但在解释他们是如何做到的方面则很业余。

Medal winner Esther Conwell is a chemistry and atomic physics expert at the University of Rochester in New York.
There are different activities you can do where if you're good enough at them, if you're expert enough at them, you don't know you're doing them.
有很多不同的事情,如果你很擅长这些活动，你对这些活动非常在行，那么你是不会意识到你正在做这些事情的。
耶鲁公开课 - 心理学导论课程节选
Poetry is not interested in expert debate at all, and it converts the big spectrum of possible degrees of accent into those two simple categories: stressed and unstressed syllables.
诗是从不在乎这样专业的争议的，它将涵盖很多不同程度的重音的音谱,简单分成两种：,重音和非重音节。
耶鲁公开课 - 现代诗歌课程节选

Pino Bethencourt is a professor and leadership expert at IE Business School, in Madrid.
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