toothed whale [脊椎] 齿鲸
Strap-toothed whale 长齿中喙鲸 ; 带齿喙鲸
Rough-toothed Dolphin 糙齿海豚 ; 糙齿长吻海豚
toothed wheel [机] 齿轮
straight toothed spur gear 直齿圆柱齿轮
toothed forceps 有齿镊 ; 齿镊
toothed bar [机] 齿条 ; 齿杆
toothed coupling 齿轮联轴节 ; 齿式联轴节
ADJ having a tooth or teeth 有齿的
ADJ (in combination) 有齿
sabre-toothed
six-toothed
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。
Manny is a wooly mammoth, Sid is a ground sloth and Diego is a smilodon or saber-toothed cat.
VOA: special.2009.06.12
During this period, large North American animal species like mammoths and saber-toothed cats disappeared.
VOA: special.2009.01.20
They are called saber-toothed cats because of their long, fierce teeth.
VOA: special.2010.04.07
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