肚子饱了，骨头就想休息； 腹饱思睡。

When the belly is full, the bones would be at rest.

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食物中的蛋白质让人清醒，而碳水化合物让人困倦思睡。

Protein in meals stimulates wakefulness, while carbohydrates promote sleep.

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思睡会造成工作表现和专注力降低，且会导致工作伤害风险增加。

Sleepiness leads to a deterioration in performance and attention, and is associated with an increased risk of injury.

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