没有since ever,应该是ever since.
没有用法区别.
He has been coughing ever since he started to smoke.
He started to smoke.Since then,he has been coughing.
since then 与since ever有什么区别?
since then 与since ever有什么区别?
英语人气：893 ℃时间：2019-12-13 17:51:02
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