Before long, you'll be an expert on the subject!
不久之后，你就成为一名该课题在专家了。
I have no pretence to be an expert on the subject.
我并不自命是这方面的专家。
If you are an expert on any subject, a film-maker who makes silly errors can be annoying - the trivial matter of incorrect MEDALS on military personnel is the one that gets my goat.
如果你是某学科的专家，一个制造愚蠢错误的电影制造商能够烦人这种没有意义的事就像我很恼火一件事即错的勋章被别在军事人员身上。
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