Noun:

1. a (usually irritating) impulsive and uncontrollable outburst by a problem child or a neurotic adult

2. (psychiatry) the display of previously inhibited emotions (often in actions rather than words); considered to be healthy and therapeutic

actininn.[生化]辅肌动蛋白actinn.肌动蛋白Actinidia leptophyllan.薄叶猕猴桃actinomycosis of nose鼻放线菌病Actinocucumis typicusn.模式辐瓜参Actinomadura spiralis螺旋马杜拉放线菌actin-depolymerzing肌动蛋白解聚因子Actinidia Planchjuice猕猴桃汁actin binding protein肌动蛋白结合蛋白Actinomma antarcticumn.南极光眼虫Actinidia suberifolian.栓叶猕猴桃acting prime minister代首相; 代总理

1. It is time to leave off talking and to start acting.
   现在该停止讨论开始行动了。
2. He obviously set out with the intention of overthrowing the country.
   他显然是带着推翻这个国家的企图开始行动的。