sharpen
英 ['ʃɑːp(ə)n]
美['ʃɑrpən]
- vt. 削尖；磨快；使敏捷；加重
- vi. 尖锐；变锋利
考试真题
- State and federal governments could sharpen that focus everywhere by broadly publishing minority graduation rates.
出自-2011年6月阅读原文
- It is important to sharpen students' communication skills.
2019年高考英语全国卷2 阅读理解 阅读D 选项