She'd heard a clock somewhere strike the hour as she'd slipped from her room.
她悄悄地从自己房间里溜出来时，听到某个地方的一只时钟正在整点报时。
Heatstroke can strike with scant warning, even after as little as a half hour if you are exercising hard, doctors say.
医生们说，中暑的发生，有时候很少有征兆，甚至可能在你剧烈运动半小时后就会发生。
Now, for the first time, one study offers tantalising evidence that it may be possible to build such a system to warn of some impending large quakes about an hour before they strike.
现在，有一项研究首次提供振奋人心的证据，证明有望建立一个在一些大地震发生前一个小时左右发出警告的系统。
America's forthcoming "Prompt Global Strike" non-nuclear hypersonic missiles will be able to hit almost any spot on earth in less than an hour-provided excellent satellite data is available.
美国即将问世的“全球快速打击”非核高超音速导弹，能在一小时内，打击地球上几乎任何地点——前提条件是有尖端卫星数据可用。
Now Israeli scientists have created an ingenious system that USES cellphone towers to predict more than an hour in advance when and where floods are likely to strike.
如今，以色列科学家发明了一种利用现有蜂窝手机基站来预测洪水的系统，对可能暴发洪水的地区和时机提前一小多时预警。
If you fall over while SITTING STILL on an UNMOVING bicycle and strike your head on the ground, your head "travels" FASTER than the 7 miles an hour it takes to fracture your skull and KILL you!
当你静坐在静止的自行车上，你摔倒在地时，你的头部是以每小时7英里的速度着地，足可以导致你的头骨破裂而死亡。
May 1, 1886, Chicago, more than 20 million workers to fight for the implementation of an eight-hour working day strike held, after a bloody hard struggle, finally won victory.
1886年5月1日，芝加哥的20多万工人为争取实行八小时工作制而举行大罢工，经过艰苦的流血斗争，终于获得了胜利。
May 1, 1886, Chicago, more than 20 million workers to fight for the implementation of an eight-hour working day strike held, after a bloody hard struggle, finally won victory.
1886年5月1日，芝加哥的20多万工人为争取实行八小时工作制而举行大罢工，经过艰苦的流血斗争，终于获得了胜利。
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