1·She handles this difficult subject with a light touch.
她处理起这种难题来方法很巧妙。
—— 《牛津词典》
2·Mathematical physics is an almost impossibly difficult subject.
数学物理学是一门难得难以想像的学科。
—— 《柯林斯英汉双解大词典》
3·It's the most difficult subject.
它是最难的学科。
4·I feel that geometry is a difficult subject.
我认为几何是一门难学的课程。
5·It can be a difficult subject to talk about.
这可能是个难以启齿的话题。
6·So that I would be very difficult subject.
这样我会很难受。
7·Mathematics is regarded as a difficult subject.
数学被人认为是难科目。
8·Mathematics is the most difficult subject for me.
数学是我最感困难的科目。
9·Though physics is a difficult subject, we like it.
尽管物理是一个难学的科目，但我们都喜欢它。
10·It is a difficult subject for you, very difficult.
对你们来说，这是个很难的问题，非常难。