科学家是如何知道的呢？

How do scientists know?

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那么应用程序如何知道您何时在线？

How then does the application know when you're online?

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参与者如何知道工作何时开始？

How do participants know when to start?

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你如何知道你的生活何时达到和谐？

How do you know when your life is in balance?

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我们如何知道何时已经完成了？

How do we know when we're done?

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如何知道这种信息是实现细节。

How it knows this is an implementation detail.

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你如何知道你什么时候成功的？

How will you know when you're successful?

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你是如何知道自己聪明与否的？

How do you know whether or not you qualify as smart?

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那么您如何知道应该显示哪个专辑呢？

So how will you know which albums to show?

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但是如何知道服务器是否正在运行呢？

But how do you know that the server is running?

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但是当最后时刻到来时您又如何知道呢？

But how do you know when that moment has arrived?

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我如何知道椅子是存在的？

How do I know that there are chairs?

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个人如何知道在特定的环境中怎么做了？

How does one know what to do in a particular circumstance?

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我如何知道我何时已经完成了我的用例？

How will I know when I have finished my use cases?

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您如何知道他们是否称职？

How do you know they're qualified for the job?

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我如何知道我应当使用这些工件的哪一个？

How do I know which one of these artifacts I should use?

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关键问题是，他们如何知道自己要去哪里？

A key question is how they know where they are going.

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叫我如何知道，这里有人会参与到谋杀中？

How was I to know there were people involved who would kill?

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如何知道我的计算机是否基于CHRP ？

How would I know if my machine is CHRP-based?

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我们如何知道客户机何时完成消息发送呢？

How do we know when the client is finished sending the message?

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您如何知道多少才够呢？

How do you know how much is enough?

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例如，翻译人员如何知道哪个元素需要翻译？

For example, how does the translator know which elements to translate?

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如何知道您需要哪一个修复程序？

How do you know which fix you need?

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但是我们如何知道？

But how do we know?

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如何知道自己忧郁呢？

How do you know if you have the blues?

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您如何知道一个类是否是空的？

How can you tell whether a class is empty?

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如何知道何时已经解决了问题？

How do you know when you have tuned the problem away?

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如何知道何时需要软件修复程序？

How do you know when you need a software fix?

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如何知道何时需要软件修复程序？

How do you know when you need a software fix?

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