Theproblemisverydifficult.Wecan'tworkitout.Theproblemis_difficultfor_toworkout.（改为同义句）
2021-03-04 112次 反馈错误 加入收藏 正确率 : 100%
题目内容：
The problem is very difficult.We can't work it out.The problem is_difficult for_to work out.
（改为同义句）
优质解答
同义句The problem is too difficult for us to work out.
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