These statements perform a single operation — hence, they're called simple.

这些语句执行一个简单的操作，因此把它们叫做简单语句。

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A single operation may actually perform many of these actions.

一个单一操作可以完成许多以上行为。

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A single operation may actually perform many of these actions.

一个单一操作可以完成许多以上行为。

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