有时候会难到没有电脑就解不出来,而有时候呢,难度就会刚好像这周作业的B组题这么难。

Sometimes it will be so hard that you cannot actually do it without the computer. Sometimes it will be just hard enough to be on Part B of this week's problem set.

youdao

这道数学题我做了一个多小时，可是我解不出来。

I work at the math problem for over one hour, but I can't work it out.

youdao

这道数学题太难，我解不出来。

The math problem is too difficult for me to work out.

youdao