为验证是否正确地安装了Subversion，键入下列命令。

To verify that Subversion was installed properly, type the following command.

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多个用户所输入的数据量会很快超过您为验证而必须传输的数据量。

The amount of data entered by various users will quickly exceed the amount of data you actually must transmit for validation.

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为验证这一想法，研究者采取了下列方法：将84个中国大学生分为两组。

To test the idea, the researchers took the following approach: 84 students at a Chinese university were divided into two groups.

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You can easily check by taking two derivatives that this particle does have the acceleration a.

你可以很容易地通过求两次导来验证,这个质点的加速度确实为 a

耶鲁公开课 - 基础物理课程节选