1. A layer of tissue on the surface of a human body or organism. Buckwheat. I knocked off a piece.
2. Leather ~ box. ~ shoes. ~ coat.
3. a layer of things wrapped or surrounded. This new book had better be wrapped up.
4.(~ son) on the surface ~. Water.
5.(~) Some flaky things cause ~. Tofu.
6. tough ~ sugar.
7. Crispy things will become hard when they are wet. When peanuts are released, they don't taste good.