英语翻译（他不能解决这道难题）,两种句子.
问题描述：
英语翻译
（他不能解决这道难题）,两种句子.
答
He could not solve this difficult problem
彼が解决できないことである。それがネックとなっている
答
he can't fix this problem
he can't catch up a solution to this problem.
答
he can not solve this hard question
this hard question can not be solved by him
专业团队献上最专业的解答
答
He cannot fix this problem.
This problem cannot be solve by him.