长选项的强制参数同样也是短选项的强制参数。

Mandatory arguments to long options are mandatory for short options too.

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对于长选项必须的参数，对于短选项也是必须的。

Mandatory arguments to long options are mandatory for short options too.

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命令行处理通常同时需要同一个命令选项的短名称和长名称。

Command-line processing typically requires both a short and a long name for the same command option.

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