滚瓜烂熟 丧权辱国 人心所向 装模作样 明目张胆 弱不禁风 鞭长不及 一技之长 谨言慎行 多事之秋
put on an act：#idiom639706#、装腔作势。She put on an act of being busy working to shy away from me.她装出一副忙于工作的样子避开我。You should keep your eyes on your homework，rather than put on an act. 你应该...