actionistn.行动主义者(赞成采取行动而不考虑反对意见者)actionn.行为；活动；措施；效用；交战；情节；事件；姿态；起诉；机能action-measuring word动量词action oriented program面向行动的方案Action on Lie groupoids李群胚的作用Action-Leading method行为引导型教学法action potential period动作电位时限action activated energy触发式能源action potential output动作电位输出Action and Reply Notice采取行动并回答通知action of the hijackers劫机分子的行动action judgement tester功能判断测试仪器

1. Somebody who stars in action films.
   动作片的明星。
2. The actress played a role in that action movie.
   那位女演员参与了该动作片的演出。