想像一下你正在开发一款社交软件，你已经为此付出了成百上千个小时了。

Imagine you're developing social software. You spend hundreds or thousands of hours on the task.

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我要对那些为此付出智慧和时间的人们说一声谢谢，感谢你们为大家带来一款真正世界级的操作系统。

I would be remiss if I didn't say a great big thank you to all the people who contribute their talent and time to give to all of us a truly world-class operating system.

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如果麦伦堡真的决定设计一款新的中型客机，波音最终可能要付出高达100亿美元的研发成本。

The decision to design a brand new aircraft for the mid-size market could end up costing Boeing $10 billion in development costs.

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