clench

咬緊、緊閉

He clenched his teeth and tried not to cry out in pain.

他咬緊牙關，努力不因疼痛而叫出聲。

握緊、緊握成拳

She clenched her fists and waited for the bad news.

她握緊拳頭，等著壞消息傳來。

緊抓、緊夾

The old man clenched a cigarette between his lips the whole time.

那位老先生一直用嘴唇緊緊夾著一根菸。

緊縮、收緊、揪緊

My stomach clenched the moment I heard his voice.

一聽到他的聲音，我的胃就揪了起來。

緊握、緊咬

There was an angry clench in his jaw as he listened.

他聽著的時候，下顎因為生氣而緊緊咬著。