强制和可选参数集中可以有零个或多个参数。

There can be zero to many parameters in both the mandatory and optional parameter sets. The parameter declaration has this syntax.

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向未成年人销售烟草制品的零售商要被强制罚款。

Fines are imposed on retailers who sell tobacco to minors.

《柯林斯英汉双解大词典》

为了使配合零件之间具有过盈或强制配合，公差必须产生零或负允差。

To have an interference or force fit between mating parts, the tolerances must be such as to create a zero or negative allowance.

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