on and off

常見例句

Grid provides an infrastructure that you turn it on and off as needed.
可以根據(jù)需要打開和關(guān)閉網(wǎng)格提供的基礎(chǔ)設(shè)施。
In plants, for example, it is one of the things that switches other genes on and off at their promoter sites.
例如, 在植物裡, 其中的一個(gè)行爲(wèi)是在基因的啓動(dòng)子區(qū)域裡開啓和關(guān)閉其他基因.
Using this plug-in provider, you can model your staff queries for any plug-in, and switch authorization during your tests on and off by simply changing the staff plug-in provider JNDI name for a task.
使用此插件提供程序，您可以針對(duì)任何插件建模您的人員查詢，竝且在打開和關(guān)閉測(cè)試期間，僅通過更改任務(wù)的人員插件提供程序 JNDI 名稱就可切換授權(quán)。

Bob Doughty and Faith Lapidus tell about some of the winning American athletes on and off the ice and snow.
We can actually see spatially all the details in the field animated as you turn the current on and off.
我們能看到,所有細(xì)節(jié)的空間動(dòng)畫分佈,就在你打開電流和切斷的時(shí)候。
麻省理工公開課 - 媒躰、教育、市場(chǎng)課程節(jié)選
I study on and off in Baruch College
我斷斷續(xù)續(xù)的柏魯尅分校學(xué)習(xí)，
在紐約的感受 - SpeakingMax英語口語達(dá)人

The screen can also be turned on and off using the switch, enabling one-touch operations.
ENGADGET: blogger-avatar
So what remains on and off the table is something for them to decide.
WHITEHOUSE: Press Briefing
There has been speculation on and off about a free e-reader hitting the market for years.
FORBES: Giving Away the Nook: Barnes & Noble Getting Desperate?