The problem was so difficult that we couldn't work it out easily同义句We___ _____working out the problem.

问题描述:

The problem was so difficult that we couldn't work it out easily同义句
We___ _____working out the problem.

had no ability of

您好!had trouble ( have trouble doing 干某事有困难)保证正确,望采纳!谢谢!

have trouble