metal skin

例句：

1. 1. The new car has a metallic skin that catches the light beautifully.
   这款新车拥有金属般的外壳，在阳光下熠熠生辉。
2. 2. The old ship had a metal skin that was worn and weathered by time.
   旧船的金属外壳被岁月磨损得斑驳不堪。
3. 3.The robot's metal skin is incredibly smooth and shiny.
   这个机器人的金属外壳非常光滑且闪亮。