Already you see here it is a the level of difficulty that is a little bit much for an exam but perfectly fine for a problem set or for a beautiful lecture like this one.

看到了吗，这个题目的难度来说，在考试里可能就会麻烦了一点，但是呢，作为作业题目，或者堂上例子就恰到好处。

youdao

Already you see here it is a the level of difficulty that is a little bit much for an exam but perfectly fine for a problem set or for a beautiful lecture like this one.

看到了吗，这个题目的难度来说，在考试里可能就会麻烦了一点，但是呢，作为作业题目，或者堂上例子就恰到好处。

youdao