n.长牙；獠牙
名词tusk的复数形式.
The earth is held between the boar's tusks. 地球位于野猪的长牙之间。
Tusks are fundamentally no different than ordinary teeth. 象的长牙和普通的牙齿基本上没有什么区别。
Beaked whales and the narwhal are the only cetacean species with tusks, according to Baker. 贝克指出，在鲸豚类中，只有突吻鲸和独角鲸具有獠牙。
The males also use the tusks for sparring, giving each other crisscrossed patterns of scars. 雄性突吻鲸也使用獠牙来角斗，并在彼此身上留下一道道交叉的伤疤。
