https://online2.tingclass.net/lesson/shi0529/0009/9907/647.mp3
https://image.tingclass.net/statics/js/2012
on the surface 表面上，外表上，在外表上
On the surface, Mike's job is good, but it's not.
表面上看，麥克的工作很好，但其實(shí)不好。
His politeness is only on the surface.
他只是表面上客氣。
