石牙用英语怎么写
英文写法翻译
Stone teeth
重点词汇
石牙───Stone teeth
双语使用场景
Sea urchins are perhaps best known for their armor of spines. But their mouths may be even more daunting-urchin teeth can literally chew through stone without getting dull.───也许关于海胆，人们知道得最多的是它们的棘刺盔甲。但是，它们的口器可能更令人望而生畏——毫不夸张地说，海胆的牙齿可以把岩石咬碎，却永远不会变钝。
But their mouths may be even more daunting-urchin teeth can literally chew through stone without getting dull.───但是，它们的口器可能更令人望而生畏——毫不夸张地说，海胆的牙齿可以把岩石咬碎，却永远不会变钝。
Stone tools abound, but human bones from other Asian sites are almost as rare as hens’ teeth.───石制工具大量出土，但在亚洲其他地方发现的人类骸骨几乎是凤毛麟角。