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
Please sit down.
请坐下。
My sister was born in nineteen thirty-eight.
我的妹妹是一九三八年出生的。
In fact, I was a bit frightened and didn't know what we should do.
事实上我有点害怕，不知道我们该怎么办。