沐沐渔的天堂
Trouble:既可以作动词,也可以作名词。1. 我遇到了一些麻烦:I've got some trouble.(名词)2. 不好意思麻烦你了:I'm sorry to trouble you.(动词)
西西里的蘑菇
Ask since...... How many years has it been since?重点词汇释义一下once; one time; in a short while; all at once自从since以来since已经already
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