Paul: I mean, how clean can teeth get? 我的意思是,牙齿能洁多干净呀?
Swords or lances, teeth, nails... choose your weapons 用剑还是枪, 哪怕牙齿和指甲都行, 随你
And their serrated teeth are as sharp as steak knives. 锯齿形状的牙齿像牛排刀一样锋利
but each urchin has five teeth, which are self sharpening and are replaced every few months. 但是每只海胆有5个锋利的牙齿 而且每隔几个月就换牙
The bear's claws and teeth can't penetrate her thick hide. 但熊的尖牙利爪都无法穿透海象厚实的毛皮