n.长牙；獠牙；尖形物
v.以牙刺戳；以牙掘
A huge tusk decorated the wall of his study. 他书房的墙上装饰着一支巨大的象牙。
The second blind grasped one of the elephant's tusks and felt it. 第二个瞎子抓住了一个象牙，摸了摸它。
The wild boar had its tusk sunk deeply into a tree and howled desperately. 野猪的獠牙陷在了树里，绝望地嗥叫着。
