When you get enough sleep, you tend to have a sharper mind, which will help you retain more information you learn in class.

在你有充足的睡眠的情况下，你的大脑会更犀利，更清醒。

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His mind was sharper than you'd think, looking at his sagging, stubbled face, and I grinned, though I was becoming more and more reluctant to indulge him.

别看他那张满是胡子茬的脸挺邋遢，可他的脑袋瓜比你想象的要机敏得多。尽管现在我越来越不愿和他搭讪，我还是笑了起来。

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Respond to its needs and your body in turn will reward you with healthy system and sharper brain and a happier mind.

满足身体的需要之后，你的身体会给你一个健康的身体，聪慧的头脑，愉悦的心情。

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"Life was too short for Roger to be defeated by illness, so when Roger's body became weak, we saw how his mind become sharper, " Emanuel said.

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Your mind will soon get sharper when the whirlwind of sensory input subsides.

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But a deeper question forming in my mind as I listened to the Prime Minister came into sharper focus during the interview I have just completed with Mr Francis himself.

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