1) since +过去一个时间点(如具体的年、月、日期、钟点、1980, last month, half past six)。
I have been here since 1989.
2) since +一段时间+ ago
I have been here since five months ago.
3) since +从句
Great changes have taken place since you left.
Considerable time has elapsed since we have been here.
4) It is +一段时间+ since从句
It is two years since I became a postgraduate student
- since的四种用法
- › since的四种用法
- 在百度中搜索相关文章:since的四种用法
- 在谷歌中搜索相关文章:since的四种用法
- 在soso中搜索相关文章:since的四种用法
- 在搜狗中搜索相关文章:since的四种用法