sharpened

柯林斯词典

1. V-T/V-I If your senses, understanding, or skills sharpen or are sharpened, you become better at noticing things, thinking, or doing something. 使敏锐; 增强
Her gaze sharpened, as if she had seen something unusual. 她眼睛一亮，好像看到了不寻常的东西。
He will need to sharpen his diplomatic skills in order to work with Congress. 他将需要增强外交技巧以与国会打交道。
2. V-T If you sharpen an object, you make its edge very thin or you make its end pointed. 使变锋利; 弄尖
He started to sharpen his knife. 他开始磨刀。