If your application has a button to cancel a long-running operation but you're doing work in the UI thread, the cancellation event won't be delivered until after the operation has finished!

如果应用程序有一个按钮用于取消某个长时间运行的操作，而您正在使用UI线程执行操作，那么这个取消事件只有到UI线程所做的操作完成后才会被处理！

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We spoke with Doctor Sapperstein just after he finished a long, difficult root canal on a patient. If he had to choose between another operation like that or a fight with his wife?

我们在埃文刚做完一个耗时长、难度大的牙根管治疗手术后对其进行了采访，你是选择再做一次这样的手术治疗，还是选择和妻子吵架？

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Results The fractures were healed at the 4th week after operation, the needles were absorbed gradually, but the inflammatory reaction maintained for a long time.

结果术后4周所有骨折均完全愈合，随着时间延长，牛骨棒亦逐渐吸收，但炎症反应一直存在。

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Although they have fought bravely and in the end successfully, it will be a long time before overseas aggressors again view them with the awe exhibited after Operation Desert Storm and the Balkan air war.

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Welbeck, 20, who is on a season-long loan from Manchester United, had an operation one day after former team-mate Darren Bent left for Aston Villa.

BBC: Sunderland striker Danny Welbeck out after surgery