show off one's strength or power; swagger about;presume on one's power to intimidate others; 逞威风
pose as a hero; play the hero; do sth. out of bravado 逞英雄
succeed in one's schemes 得逞
be wayward 逞性子
Cheng Wei 逞卫
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)