断断续续地，不时地

不时; 断断续续地; 间歇地; 启闭

on and on───继续不停地

to hand off───交出

hand off───不可触摸；切换，转换

stand off───疏远，远离；避开；离岸

down and out───贫困潦倒的；被击倒不能再战的

to stand off───对峙

to fend off───抵挡

to send off───送行

to ward off───避开

Sparks were emitted from small black boxes and red lamps flashed on and off angrily.───黑色的小盒子里发出火花,红灯刺目地忽亮忽灭.

Is It'something you can turn on and off like a faucet?───这是不是象自来水龙头,你要开就开,要关就关?

Blink your headlights on and off.───使车前灯闪烁(打信号)吧.

Their conduct both on and off the pitch was excellent.───他们场上场下都表现出众。

To our amusement, the actor jumped on and off the stage.───令我们感到有趣的是, 那个演员从舞台跳上跳下.

The boat , which was swinging in an eddy, came on and off and pitched with violence.───飘荡在旋涡里的渡船, 一上一下猛烈地颠簸起来.

I believe, from what I know of him, he was a bit of a rake. We bivouacked together on and off for nearly two years.───我对他的了解，这是个有点浪子气息的家伙。我们断断续续地在一起露营了近两年。

It rained on and off all day.───哩哩啦啦下了一天雨.

This low-impact exercise involves stepping on and off a platform following routines to music.───这一低强度锻炼的内容包括在伴随音乐做完固定动作之后重复踏上踏下平台。

She fascinated him, both on and off stage.───不管是台上还是台下的她，都让他着迷。

I shall sit here," he said, "on and off, for days and days."───我要坐在这儿，”他说，“断断续续地坐上好几天。”

It rained on and off all day.───雨断断续续地下了一整天。

Sam was flicking a flashlight on and off.───萨姆啪啪不停地把手电筒开了又关。

Quick powering on and off, an advantage for smooth presentations.───快速电源开和关, 为顺利演示优势.

I was still working on and off as a waitress to support myself.───我为了糊口仍然间或去做服务员。

Power response is uniform, with smoother variations on and off - axis.───功率响应一致, 同轴和离轴变化更为平稳.

Rebecca and I had lived together on and off for years.───我跟贝丽卡时作时辍地一起生活了好多年.

Don't confuse me with technicalities —— all I need to know is how to turn the machine on and off.───细节性技术我搞不懂,别讲了,我要知道的只是机器怎么开关.