vt.

1. 封闭；堵塞
2. 阻挡
3. 【化】吸收
4. 使（上下牙齿）咬合

vi.

1. （牙齿）咬合

v.

1. stop, close up, or obstruct.
2. Chemistry  (of a solid) absorb and retain (a gas or impurity).
3. (of a tooth) come into contact with another in the opposite jaw.