He made repeated efforts to solve the problem.
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He made repeated efforts to solve the problem.
他一遍又一遍(不断地)努力来解决这个问题
楼主你上个问题还没采纳我哦!
再问: 继续采纳你了
楼主你上个问题还没采纳我哦!
再问: 继续采纳你了
He found that the problem was hard to solve.
but he found the problem difficult to solve
help to solve the problem?
The problem is easy to solve.为什么用to solve
同义句转换he has decided to solve the problem by himself he has_
The________designed some programs to solve the problem.
He____________a good idea to solve the problem.
The problem is ___ to solve.
He_________a good idea to solve the problem.
This is the way ______ he thought of to solve the problem. A
-------he managed to solve the problem A.was it how that B.w
帮我检查:He tried his best to solve the problem,( )