vi.

1. 下車；下馬[（+from）]

vt.

1. 使下馬；使掉下馬
   The knight dismounted his opponent.

   騎士將他的敵手打下馬。

2. （從底座上）卸下
   dismount a gun from the gun carriage

   從砲架上卸下大砲

3. 拆開（機器等）

n.

1. 下車；下馬[U]

v.

1. get off a horse, bicycle, etc.
2. remove (something) from its support.
3. Computing  make (a disk or disk drive) unavailable for use.