smooth surface的用法和樣例：
例句
- The surface of Eggs was smooth and glossy.
卵表面光滑無特殊結構。 - Make your first brush strokes, then lay off to get the surface smooth.
你先初刷一遍，然後往下再刷一層使表面光滑。 - Full is also studying how geckos climb smooth surfaces.
富爾還研究壁虎爬越光滑表面的技巧。 - A light tap on a smooth surface or the proximity of a hand replaces physical actuation of a mechanical switch.
在光滑表面上輕輕一觸，或者用手靠近一下，就能代替機械開關的物理傳動。
