ramming/ræm/名词公羊攻城槌；撞击装置They used a ram to break down the door.他们用攻城槌撞开了门。/ræm/名词随机存取储存器（random access memory 的缩写）/ræm/动词猛撞，猛击；塞进I rammed down the soil around the fence post.我把篱笆桩周围的土夯实。想跟读，去练习
