During testing, you realize that there are some use cases for which you want the ability to cancel queries that might be incorrectly specified by the client.

在测试中，您发现在一些用例中，您想要取消由客户机错误提出的请求。

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One option is to use the built-in dialog and pretend Ok/Cancel or Yes/No are really appropriate prompts for the user.

一种选择是使用内置的对话框，假定OK/Cancel或者Yes/No就是用户想要的提示。

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The TimerTask class has a cancel method that you can use to cancel subsequent invocations of the task.

timertask类有一个cancel方法，可以用它取消对任务的后续调用。

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They had to cancel the moon landing and use the moon lander as a lifeboat.

VOA: special.2009.07.29

But in terms of SI units, which become much more useful if you're actually trying to use intensity in a problem and cancel out your units, we're just talking about joules per second is what intensity is.

但是用国际单位制，这个变得越来越有用了,如果你实际上在使用强度,来解决问题和约化单位，我们仅仅讨论每秒钟的焦耳,这就是强度。

麻省理工公开课 - 化学原理课程节选

However, once firms have purchased spectrum in excess of the cap, they would have substantial incentive to use their political muscle to delay or cancel any divestitures, or to sell off properties which are inferior to those acquired in the auction.

FORBES: Spectrum Auctions: Should Congress Let AT&T, Verizon Bid?

Arriva Trains Wales said it was forced to cancel services and use buses to transport passengers between Llanrwst, Conwy, and Blaenau Ffestiniog, Gwynedd, and between Newtown and Machynlleth, Powys.

BBC: Wales floods: Flooding sparks more travel disruption

This change prompted me to look over the plan and I decided to cancel the DVD option since I barely use it.

FORBES: Could We All Please Shut Up About Netflix?