A reference topic provides specific information, such as a command, message, program option, or API.

参考主题提供了特定的信息，如命令、消息、程序选项或者API。

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So generally, if you don't get an error message in a command line environment like this, that's good.

一般来说，如果你在命令行界面,没有收到错误信息，那就是好消息。

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But if the dir command results in the error message "Invalid drive specification, " go back and try again.

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When an incoming call or message arrives, it can be received via voice command without even touching the phone.

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But by talking prematurely about tax cuts, Mr Duncan Smith is only giving ammunition to Tony Blair and confusing what should be his party's most important message: that the Conservatives' newfound decentralist approach is superior to the philosophically flawed command-and-control methods of the government.

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