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
verb [vt. 及物动词] （使）变锋利（尖锐，清晰）；（使）改善，提高；（使）加剧
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。
- sharpen 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 029&30 Come in, Amy. sharpen 动词: 削尖，使锋利
sharp(锋利的) + en(使…) → 使锋利的 → 削尖， 磨快
- 网友用 “Sharpen” 造句精选
- I can sharpen scissors, too. 我也会磨剪刀。
- 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。
- The brave will sharpen their will. 勇敢的人会磨练自己的意志。
- He started to sharpen his knife. 他开始磨刀。