【makecertainof和becertainof的区别?】
2020-09-20 217次 反馈错误 加入收藏 正确率 : 100%
题目内容：
make certain of和be certain of的区别?
优质解答
差不多,be certain of表示状态,make certain of表示动作.
He is certain of his success in the election.
He called to make certain of his success in the election.
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