Angry protestors with clenched fists shouted their defiance.

愤怒的抗议者们紧握拳头高声抗议。

《柯林斯英汉双解大词典》

Dear God, I am so afraid to open my clenched fists!

亲爱的上帝，我因为害怕而不能松开我紧握的双手！

youdao

His action is: raised left hand, and slowly more and more tight and clenched fists.

老先生的动作是：举起左手，慢慢地而有越来越紧的握紧拳头。

youdao

Inside, corn traders shout and raise their clenched fists in the air.

BBC: US crops tell story of future world food prices

So clenched fists, shouting and shirt-tugging are deliberate techniques to this end.

BBC: Why are tennis players so badly behaved?

His little hands were clenched into fists.

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