https://online2.tingclass.net/lesson/shi0529/0009/9907/494.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
skin-deep 膚淺的，表面的
Mike's friendships are just skin-deep. He only cares about himself.
Mike和朋友的友情都只是表面上的。他真正關(guān)心只有他自己。
Her beauty is only skin-deep. Actually, she is very mean.
她的美貌只是表面現(xiàn)象。其實(shí)她人很刻薄。
