每日邮报最近把这种正在席卷全球的活动叫做“新停心摄影狂热”。 rooftopping是指那些勇敢的摄影师在摩天大楼或者很高的建筑的天台边缘拍摄照片的行为。

Daily Mail recently called it the "new heart-stopping photography craze" that's sweeping the globe.

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一辆摩车托直奔人行横道而来，司机似乎准备冲进熙熙攘攘过街的人群，奈笛看见了，她皱皱眉，猛地伸出双手向司机示意一个“停”的动作，然后指了指红灯。

Suarez frowned, thrust her hands forward in a "stop" motion and then pointed to a red light as a motorcyclist raced toward a crosswalk filled with pedestrians.

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介绍各种二指标鞅关于停点、强停点的停止定理，主要结果有弱鞅、强鞅关于停点、强停点的停止定理。

The principal results include stopping theorem of weak martingale and strong martingale on stopping point and strong stopping point.

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How do we know this always stops? I mean, I ran three trials here, and it did. But how would I reason about, does this always stop?

我指的是我在这儿试了三次，它都停了，那这是为什么呢？,它总是会停下么？

麻省理工公开课 - 计算机科学及编程导论课程节选