clench
Definition
To close or tighten the hand into a fist or to grip tightly.
中文 将手紧握成拳头或紧紧抓住。
Example
"He clenched his teeth in frustration during the argument."
To close or tighten the hand into a fist or to grip tightly.
中文 将手紧握成拳头或紧紧抓住。
"He clenched his teeth in frustration during the argument."