Other cultural rules have to do with taboos against eating certain things.

其他文化规则与某些食物的禁忌有关。

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These rules have targets that tell the kernel what to do with packets coming from certain sources, heading for certain destinations or have certain protocol types.

这些规则具有 目标，它们告诉内核对来自某些源、前往某些目的地或具有某些协议类型的信息包做些什么。

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You have to write certain rules that are based on how you are modeling the data.

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Gentlemen, your campaigns have agreed to certain rules, and they are simple.

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However they often have complicate rules, with certain days of the week or times of day when they do not welcome guests.

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