n.[C]

1. 公羊
2. 【天】（大写）白羊（星）座[the S]
3. 攻城槌
4. 【机】夯，打桩机；撞杆，撞锤

vt.

1. 夯实（土等）；把（杆，株等）埋实[O][（+down/in/into）]
   I rammed down the earth around the newly-planted tree.

   我将新栽的树周围的土夯实。

2. 猛压；硬塞；装（弹药）[（+down/in/into/onto）]
   The robbers rammed the gag in her mouth.

   强盗用力将堵嘴物塞进她口中。

3. 猛撞，撞击[（+against/at/on/into）]
   A truck rammed a motorbike.

   一辆卡车撞了摩托车。

4. 反复灌输，迫使接受[（+across/through）]
   The terrorist attack rammed home the need for tighter security.

   恐怖分子的袭击使人们充分认识到加强安全措施的必要性。

vi.

1. 猛撞
   The truck rammed into a tree.

   卡车撞上了一棵树。

2. 迅速移动
   The motorcyclists rammed down the highway.

   摩托车手们沿着公路飞驰而去。

n.

1. an uncastrated male sheep.
2. a battering ram.
3. the falling weight of a piledriving machine.
4. a hydraulic water-raising or lifting machine.
   ▸the piston of a hydrostatic press.
5. historical a projecting part of the bow of a warship, for piercing the sides of other ships.

v.

1. roughly force (something) into place.
2. (of a vehicle or vessel) be driven violently into.
3. (ram into) crash violently against.
4. [often as adj. rammed] beat (earth) with a heavy implement to make it hard and firm.