- 释义：
- vt. 削尖，使敏锐
- 构词：
- sharp尖+en变成→v.削尖,使敏锐
- 例句：
-
She needs to sharpen up before next month's competition.
下个月比赛之前,她的水平需要提高一下.
换一句
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This exercise will help students sharpen up their reading skills.
这个练习将帮助学生提高阅读能力.
换一句
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The training is designed to sharpen the fighter's reflexes.
这项训练是为了加快作战者的反应速度.
换一句