这是一个很敏感的问题，因为大部分客户都会误会它(不管怎样，知识产权是一个棘手的课题)。
This is a very sensitive subject because most clients misunderstand it (intellectual property is a tricky subject anyways).
这可能是一个棘手的课题，像看起来补偿很少跟多少价值赋予社会工作,但是在每个领域都有一些或多或少。
This can be a tricky subject as it often seems like compensation has very little to do with how much value a job gives to society, but, within every field there are some that are paid more or less.
习语研究是英语学习中最令人神往但又最棘手的课题，因为习语是英语民族所特有的任意性的语言手段和表达方式。
No subject matter in English studies is so fascinating yet so difficult to trace as the construction and behaviour of idioms, the turns of expression peculiar to the nation and the language.
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