1. The disappearance of megafauna in America—mammoths, saber-toothed cats, giant sloths, among others—happened relatively soon after the arrival of human beings, about 13,000 years ago. 美洲巨型动物的消失——猛犸象、剑齿猫、巨型树懒等等——发生在人类出现后不久，大约在一万三千年前。
2. As the leaves flip, they snap together, trapping the insect in their sharp-toothed jaws. 当树叶翻转时，它们会合在一起，把昆虫困在它们含有锋利锯齿的颚中。
3. The largest land-dwelling member of the weasel family is strong, tenacious, sharp-toothed and cunning. 黄鼠狼家族里最大的陆地居住成员是强有力，坚韧的，有锋利的牙齿而且狡猾。
4. To tear up in a toothed machine. 在有齿的机器上拆碎布或。
5. The sabre-toothed monsters are unimpressed. 獠牙妖怪们对我们的游戏无动于衷。
