sharpens
['ʃɑ:pən]
[ sharpens ]
vt.使尖锐, 磨快, 加剧
vi.变尖锐
例句与用法：
My pencil is blunt, could you lend me a knife to sharpen it?
我的铅笔钝了，你能借我把刀子削一削吗？
The soldiers sharpened up their knives.
战士们把刀磨得锋利。
Generations of urban living sharpened their wits.
世代居住在城市里使他们磨练了才智。
词形变化：
名词: sharpener | 动词过去式: sharpened | 动词过去分词: sharpened | 动词现在分词: sharpening | 动词第三人称单数: sharpens |