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需要多少睡眠因人而异,通常情况下,体力劳动者比脑力劳动者需要更多的睡眠,工作繁忙的人比闲散的人需要更多的睡眠,而且这还与年龄密切相关。
The amount of sleep needed varies from person to person, and usually manual workers need more sleep than mental workers, and those who are busy with work need more sleep than those who do not, and this is also age-related.