• VOA流行美语 Unit 213:dumb down和win win Larry和李华在谈李华教中文的事。李华会学到两个常用语:dumbdown和win-win。LL:So,whenyouteachfirstyearChineseyoumustreallyhavetodumbdownthematerialforthestudents.LH:什么?Dumbdown?这是什么意思呀?LL:Yeah.Todum......