hardens , hardening , hardened
When something hardens or when you harden it, it becomes stiff or firm.
Mould the mixture into shape while hot, before it hardens.
在混合物变硬之前,趁热将其塑造成形。
When an attitude or opinion hardens or is hardened, it becomes harsher, stronger, or fixed.
Their action can only serve to harden the attitude of landowners.
他们的举动只会使土地所有者们的态度变得强硬。
When events harden people or when people harden, they become less easily affected emotionally and less sympathetic and gentle than they were before.
Her years of drunken bickering hardened my heart.
她多年来醉酒吵闹,我的心也麻木了。
If you say that someone's face or eyes harden, you mean that they suddenly look serious or angry.
His smile died and the look in his face hardened.
他的微笑消失了,脸上的表情突然显得严峻。