clench [klentʃ]

以下由轻松背单词网站提供

vt.捏紧（拳头等），咬紧（牙齿等），紧紧握住

to close or hold something very tightly , often in a determined or angry way

I clenched the arms of my chair. 我死死抓住椅子扶手。
Slowly, he released his breath through clenched teeth. 他从紧咬的牙缝间慢慢地舒了口气。