https://online2.tingclass.net/lesson/shi0529/0009/9907/99.mp3
https://image.tingclass.net/statics/js/2012
讲解文本：
play dumb 装傻，装聋作哑
dumb 哑的，不能说话的，笨的
Don't play dumb with me, I know you ate the last piece of cake.
别装傻了，我知道是你吃了最后一块蛋糕。
He says he doesn't know it at all, but I know he's just playing dumb.
他说他完全不知道这件事，我知道他只是在装聋作哑。
疯狂练习吧!
