since的四种用法
时间：2019-01-04 作者：英语课 分类：英文语法词汇
英语课
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 1 student.
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收听单词发音 1
postgraduate
adj.大学毕业后的，大学研究院的；n.研究生
参考例句：
I didn't put down that I had postgraduate degree.我没有写上我有硕士学位。
After college,Mary hopes to do postgraduate work in law school.大学毕业后， 玛丽想在法学院从事研究工作。
adj.大学毕业后的，大学研究院的；n.研究生
- I didn't put down that I had postgraduate degree.我没有写上我有硕士学位。
- After college,Mary hopes to do postgraduate work in law school.大学毕业后， 玛丽想在法学院从事研究工作。
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since