The soft, fibrous tissue covering that part of the jawbones in which the teeth are embedded.

(常用复数)齿龈；牙肉。

A semitransparent vegetable substance that comes out of certain trees and shrubs and hardens on the surface.

树胶；树脂

India rubber.

弹性橡胶；橡皮。

A preparation of some cohesive substance, used for chewing.

【美】口香糖。

A gum tree.

胶树。

Overshoes.

【俚】套鞋。

Mucus on edge of eyelids.

眼屎；眼垢。

To smear or fasten with mucilage.

涂以树胶；胶黏；胶合。

To become stiff or sticky.

变浓厚；变成黏性。