Do not overload wall outlets, extension cords, or integral convenience receptacles.

请勿使壁装电源插座，延长线或一体式便利插座过载。

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Do not overload drawers.

不要超负荷抽屉。

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Do not overload the electrical system by using too many machines at once.

不要同时使用许多机器使供电系统超量负载。

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It also advises students not to overload themselves, to do practice papers, and to give themselves regular rewards and breaks during revision.

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