H: Provides help on syntax and options.

h：提供关于语法和选项的帮助。

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Note that the longer option (help) must precede the shorter option (h) for the code to work properly.

请注意，较长的选项(help)必须在较短的选项(h)之前，代码才能正常工作。

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W. H. O. medical officer Shamim Qazi says the new findings will help children, families and hospitals.

世界卫生组织的卫生官员沙米姆·卡齐说这些新发现将有助于儿童、家庭和医院。

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W. H. O. medical officer Shamim Qazi says the new findings will help children, families and hospitals.

世界卫生组织的卫生官员沙米姆·卡齐说这些新发现将有助于儿童、家庭和医院。

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