2. She had spent many wakeful nights worrying about him. 她度过了许多不眠之夜,为他担心。
3. He himself was feeling quite wakeful and even lively, though he didn't know why. 他自己觉得很清醒,甚至充满活力,虽然他不知道为什么。
4. The eye controlled by the sleeping hemisphere keeps shut, while the wakeful hemisphere's eye stays open and alert. 由睡眠大脑半球控制的眼睛保持关闭,而清醒大脑半球的眼睛保持睁开和警觉。
5. Several times lately, I have lain wakeful when there sounded the first note of the earliest lark, which makes me almost glad of my restless nights. 最近有几次,当最早的云雀发出第一声鸣叫时,我躺在床上睡不着觉,这使我几乎为自己的多少个不眠之夜感到欣然。