It writes your string argument to stderr (standard error), followed by a colon and a space, then the system error message followed by a newline.

它先将您的字符串参数写至标准错误(提供它用于定制消息)，接下来写入一个冒号和一个空格，然后是系统错误消息，后面是新的一行。

youdao

A colon cleanse system will help you do this.

一个冒号清洗系统将帮助您做到这一点。

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So, here are 5 reasons why you should use a colon cleanse system.

因此，这里有5个原因你应该使用一个冒号净化系统。

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The guy you step over on the street is costing the system more than anyone else in your life except for the person with end-stage metastatic colon cancer.

NPR: A Scientific Approach to Helping the Homeless

The vaccine, called Stimuvax, aims to stimulate the immune system to attack a protein fragment called MUC-1 found on lung, breast, prostate and colon tumors.

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