H: Provides help on syntax and options.

h：提供关于语法和选项的帮助。

youdao

Add and expose the -? Argument to complement the existing help argument a "h."

添加并公开- ？参数来补充现有的帮助参数—h。

youdao

Use "h" to get help on using less.

使用“h”来获得less的使用帮助。

youdao

He says the finding might also help explain why people with A.D.H.D.

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