scratch the surface

帮忙翻译下什么意思：Scratch: A depression carved into a surface that i Under The Surface 歌词 Beneath The Surface 歌词 touch the surface on the surface是什么意思 over the surface Under the Surface是什么意思? surface Surface Of The Sun 歌词 scrach the surface是什么意思呢 英语翻译Beneath the surface story the dependence of surface tension