John and Susan had an off again, on again romance.

约翰和苏珊的感情时好时坏。

youdao

"There is a need to break the on-again-off-again cycle of our military-to-military relationship,".

VOA: standard.2009.10.27

But in fact, if you just run your fingers again and again over this floppy disk you are disorienting those particles or knocking them off perhaps altogether, depending on the medium.

事实上，如果你把手指一次次的在磁盘上面滑动,这些粒子就会变的无极性,或者把它们整个搞坏，而这取决于媒介。

哈佛公开课 - 计算机科学课程节选

Hold off again, for a few minutes at least, on the question, so what should we believe ? in the body view, the personality view?

等等，先抽几分钟，讨论一下这个问题，我们应该,相信什么？肉体论？人格论？

耶鲁公开课 - 死亡课程节选

NPR's Mike Shuster has been covering these off again, on again negotiations, and he joins us now.

NPR: North Korea Dropped From Terror List

Constructing one has been the aim of European diplomats in months of off again, on again talks.

ECONOMIST: Diplomacy for diplomacy's sake

Park was four shots clear after eight holes of his third round on Saturday, but was reeled in by Parsons and they set off again on level terms.

BBC: Parsons happy in home city