一些被“规定的”用法，要准确地学习和遵循；另一些被“禁止的”用法，则要避免使用。

Some usages are "prescribed," to be learnt and followed accurately; others are "proscribed," to be avoided.

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用法：有关安装、使用和自定义资产的规则。

Usage: the rules for installing, using, and customizing the asset.

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消费者这个概念在不同的场景里使用，可能用法和意义会不同。

The concept of a consumer is used in different contexts, so that the usage and significance of the term may vary.

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