Hardens
v. （使）变硬( harden的第三人称单数 ); （使）坚固; （使）硬化; （使）变得坚强
🗣️ 情景例句
He tried to smile.
他设法要微笑。
I'm sorry I forgot your birthday, it completely slipped my mind.
我很抱歉忘了你的生日，我完全不记得了。
Just then, the gaoler appeared with the precious letter in his bands.
这时狱卒上场，手里拿着那封珍贵的信。