Google Co-op Search 电子图书搜索引擎
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Likewise, "lsusb" will identify most webcams. Telling the OP how to run the command, and suggesting that he search the forums using that information, will often help him get the solution.
告诉发帖者如何运行这些命令，建议他去从论坛寻找相关信息，经常会帮助他找到解决方法。
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