紧握拳头 meaning in Chinese

grifist

Frank clenched his fist and broke out in excitement .
富兰克紧握拳头，冲动地说。
He clenched his fists
他紧握拳头
Let ? your ? hands ? and ? arms ? drop ? naturally ? to ? your ? side ? ， gently ? fold ? both ? indes ? fingers ? together ， without ? wringing ? or ? gripping ? your ? hands ? in ? any ? way ;
将手和手臂自然地在身体两侧下垂，轻微屈起食指，不要扭在一起或紧握拳头；
My home darling occasionally now and then when the family grabs her toy or emphatic moment can behave head of close make a fist , set sb ' s teeth very emphatic appearance , what reason is knowing
我家宝宝有时候偶然人家抢她玩具的时候或者用力的时候会表现紧握拳头，咬紧牙关很用力的样子，不知道是什么原因？