Creates a directory. Also non-existent parent directories are created, when necessary. Does nothing if the directory already exist.

创建一个目录，如果该目录存在，则设么也不做。

youdao

What is more, the sizeable numbers in which these weapons have been discovered suggests that they - like other of Saddam's WMD and associated activities - were deliberately concealed, rather than "misplaced, " to say nothing of non-existent.

CENTERFORSECURITYPOLICY: Gaffney gives 'just the facts' on Iraqi WMD

You have nothing to lose but your virtually non-existent reputations.

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