煮土豆前先削皮。

___Peel the potatoes before you boil them.

用一把锋利的刀给芒果削皮会容易得多。

It's much easier to ___peel a mango with a sharp knife.

根据食谱，你需要将两根胡萝卜削皮并磨碎。

For the recipe, you need to ___peel and grate two carrots.