The activists were shot when they refused to obey an order to halt.

当那些激进分子拒绝听从要他们停下来的命令时，他们遭到了射击。

《柯林斯英汉双解大词典》

Research shows that when we absorb information in order to teach it to someone else, we learn it more accurately and deeply, perhaps in part because we are engaging our social cognition.

研究表明，当我们为了把信息传授给别人而吸收信息时，我们会更准确、更深入地学习它，也许部分是因为我们正在参与我们的社会认知。

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When communicating with others, you should pay attention to your attitude in order to avoid making others feel unconformable.

和别人交流时，你应该注意你的态度，以免让他人觉得不舒服。

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A Virginia congressman, Roger Pryor, was visiting Fort Johnson when the order to fire was given.

VOA: special.2009.08.13

And the claim is that when you choose this, in order to justify your decision, you denigrate the one you didn't choose.

对这个行为的解释是，当你选这一粒时，为了表明你的选择是正确的，你会贬低第一次没选上的那粒。

耶鲁公开课 - 心理学导论课程节选

In another example, you can use a "when" question in order to ask about the timing of a specific event.

在下面这个例子中，你可以用When 问句来询问一个具体活动的时间。

When 课堂 - SpeakingMax英语口语达人

Brokers will have the best knowledge of what happened to an order and can advise their buy-side clients on the most effective approach, such as when to use limits and when not to in order to avoid implementation shortfall.

FORBES: When Total Cost Analysis (TCA) Breaks Down

Government so disrupts the natural social and economic order when it goes beyond minimal efforts to maintain it order that spontaneously emerges when individuals are left free to live their lives as they see fit that any incremental benefits the hosts derive from increased social order are outweighed by the social and economic havoc government creates in the process of trying to maintain it.

FORBES: Observations On An Increasingly Parasitic Government

The best way to protect yourself is to use limit orders when placing an order to buy or sell a stock or an exchange-traded fund. (See How Your Buy and Sell Orders Get Filled for more.) Look at the bid-ask spread and set your price limit at the bid for selling a stock and at the ask for buying a stock.

FORBES: Don't Let Cases Of Financial Foul Play Keep You Out Of The Market