There was a strict rule against turning round until one gave the signal, when all turned at once.

有一条严格的规定，在一个人发出信号，所有人一起转身之前，所有的人都不得转身。

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One hot summer afternoon, he was taking a walk when a thunderstorm started all at once.

一个炎热的夏日下午，他正在散步，突然下起了雷雨。

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You can decide to release them all at once, but it’s best to send one out once a week.

你可以一次发完所有文章，但最好一星期发一篇。

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bugs And if so, let's fix them all at once rather than one at a time.

让我们一次性全部修复这些,而不是一次修复一个。

麻省理工公开课 - 计算机科学及编程导论课程节选

However, over the course of time, some ancient Israelites, not all at once and not unanimously, broke with this view and articulated a different view, that there was one divine power, one god.

然而随着时间推移一些犹太人，不是全体一致地，摒弃了这种，认同并信仰一种完全不同的，那就是世上只有一个神，上帝。

耶鲁公开课 - 旧约导论课程节选

There is simply no way to build a sustainable model for journalism in the digital era without executing on all three at once — with one staff, not a different one for each platform.

FORBES: Inside Forbes: Journalists Must Find and Exploit the Efficiencies In Print, Desktop and Mobile

Instead of looking at a single gene or protein in isolation, researchers may one day study all of them at once to understand how the body functions and how things go wrong, charting for the first time the intricate biochemical chain reactions that lead to heart disease, diabetes or schizophrenia--and gaining astonishing insights into cures.

FORBES: Innovators

This ability to wirelessly program all of the robots at once is one of the major advantages of this design.

FORBES: A Swarm of Thousands of Robots - For Cheap