Sharpens
v. （使）提高( sharpen的第三人称单数 ); （使声音）变得尖锐; （使）变得更好（或技术更高、更有效等）; （使）变得锋利
🗣️ 情景例句
Earth day should be every day.
每一天都应该是地球日。
Christmas falls on a Friday this year.
今年的圣诞节是星期五。
I know that he's doing his best, but he says that he is a little weak in Chinese.
我知道他非常努力，但他说他的中文有点儿差。