剥开香蕉，扔掉外皮。

Peel the banana and discard the ___skin.

我踩到一块被丢弃的橘子皮，差点摔倒。

I slipped on a discarded orange ___skin and nearly fell.

有些食谱建议连皮烤土豆，以获得更丰富的口感。

Some recipes recommend roasting potatoes with their ___skins on for extra texture.