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1·I have lived here off and on since 2007. I am a journalist.

从2007年起，我就断断续续地住在这儿。我是一名记者。

2·I've been involved with pubs off and on for ten years.

我从事和酒吧相关的事业加起来有十年时间了。

3·It rains off and on.

雨忽而下，忽而停。《新英汉大辞典》

4·It drizzled off and on all day.

毛毛雨已经时停时续地下了一整天。

5·It has been off and on for a month.

这样断断续续了一个月。

6·They drank, off and on, for several days.

他们断断续续地喝了好几天。

7·I've been learning English off and on for 4 years.

我断断续续学了四年英语了。

8·I have been learning English off and on for 12 years.

我断断续续学了12年的英语了。

9·I have been studying Japanese off and on for ten years.

我已经断断续续学日语有10年了。

10·Yahoo! And Microsoft have been talking, off and on, since last year.

雅虎和微软自去年起进行了断断续续的谈判。