> 英语 >
1.是have problem (in) doing sth.还是have problems (in) doing sth.
这里的problem可不可以加s
2.如果是很困难的话problem前加什么?
人气:190 ℃ 时间:2019-08-21 15:48:37
解答
have problem (in) doing sth
It is such a difficult problem.
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