1) Clench one's teeth;clenched my fists in anger.

咬紧牙关;愤怒地握紧我的拳头
4) To clench(one's fist).

握紧(拳头)
6) His fists were clenched,

他的拳头紧握,
补充资料:咬紧牙关
1.谓尽最大努力忍受痛苦或克服困难。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条