He ate little, slept less, dressed in rags.
他吃得很少，睡眠不够，穿得也很破。
When that genetic tweak was replicated in mice, they slept less too.
当那个变异的基因复制到白鼠身上时，白鼠们也睡眠时间很短。
Sure enough, they found that these mice slept less than the average mouse.
果不其然，他们发现这些老鼠比一般的老鼠睡得少。
They slept six hours a night or less.
他们每晚只睡6个小时或更少。
They slept six hours a night or less.
他们每晚只睡6个小时或更少。
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