Toughens
v. （使某物[人]）坚韧, 坚强, 强硬( toughen的第三人称单数 )
🗣️ 情景例句
He says he'll get up at six tomorrow morning, but he'll never make it.
他说他明天早上要6点起床，但他是绝对做不到的。
I agree. I wish they were simpler.
我觉得也是，希望能简单些。
Oh dear! You're right.It's closed.
哎吆！你说得对，是关着的。