中英释义：
双语例句
拳击手挥动拳头，试图打出一拳。
The boxer was flailing his fists in an attempt to land a punch.
拳击手拼命地挥动拳头，试图赢得比赛。
The boxer flailed his fists in a desperate attempt to win the match.
重点词汇
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挥动
wave; throw; toss; sweep; swing; flutter; flap; shake; flick; flourish
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拳头
fist; duke