clench

1. V-T/V-I When you clench your fist or your fist clenches, you curl your fingers up tightly, usually because you are very angry. (常指因生氣而) 握緊 (拳頭)

Alex clenched her fists and gritted her teeth. 亞麗尅斯握緊拳頭，咬緊牙。

She pulled at his sleeve and he turned on her, fists clenching again before he saw who it was. 她扯了扯他的袖子，他惡洶洶地轉(zhuǎn)過身，在看見她是誰之前又再次握緊了拳頭。

2. V-T/V-I When you clench your teeth or they clench, you squeeze your teeth together firmly, usually because you are angry or upset. (常指因生氣或不安而) 咬緊 (牙)

Patsy had to clench her jaw to suppress her anger. 帕茜不得不咬緊牙關(guān)來壓下怒火。

3. V-T If you clench something in your hand or in your teeth, you hold it tightly with your hand or your teeth. 握緊; 咬緊

I clenched the arms of my chair. 我緊緊握住我的椅子扶手。