wakefulness造句
31. The team was looking for a natural clock in the body that controls sleep and wakefulness.
32. Researchers have theorized that sleep may restore some chemical that is drained during periods of wakefulness.
33. The insomniac is habitually afflicted with wakefulness at times when he wishes to sleep.
34. Old Cheng fell asleep, but Xiangzi tossed and turned in wakefulness.
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