To free electrons, something has to make them whirl fast enough to break away from their nuclei.

为了释放电子，必须使电子高速旋转而足以摆脱它们的原子核。

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They noticed that when people fast-forward a DVR they actually concentrate intensely on the screen, looking out for the end of the advertising break so that they can get back to their programme.

他们注意到，在人们快进视频录像的时候，实际上是紧盯着电视屏幕的，用以寻找广告时段的重点以便继续观看他们的节目。

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Sought after by many patrons in the competitive fast food market, a break of their own success!

受到众多食客的追捧，在竞争激烈的快餐市场闯出了一条属于自己的成功之路！

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Just before sunset, when Muslims break their daily Ramadan fast, three roadside bombs exploded within a few minutes of each other at the crowded al-Tameem market in a predominantly Shiite area in Baghdad's southern outskirts, police officials in the capital said.

CNN: Iraq bombs kill 25 people as Muslims celebrate Ramadan

He and his family had just sat down to break the day-long Ramadan fast when four gunmen entered their Mosul home.

UNESCO: MEDIA SERVICES

The one fast on the heels of their five week summer break?

FORBES: Congress Takes Home Millions of Tax Dollars While on Recess