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- Ahnost a million years ago, saber tooth tigers, giant sloths and other monsters stumbled into the pits where they were preserved forever in the sticky tar. 大约一百万年以前，长着剑齿的老虎、巨大的懒猴和其他庞然大物突然跌进坑内，它们在粘胶似的沥青里被永久保存了下来。
- The saber toothed cat, Smilodon fatalis, existed in North and South America until 10,000 years ago. 有好像剑一样长牙齿的猫科动物，也就是我们所说的剑齿虎。大约在1万年之前剑齿虎生长于美国南部和北部地区。
- Those first Americans hunted now extinct animals: wooly mammoths and saber toothed cats, and sheltered themselves in rock overhangs and caves. 第一批美国人发现且现存的动物有：毛象和剑齿猫，他们栖息于突出的岩石下和洞穴内。
- The tiger in the cage gnawed listlessly at a bone. 笼子里的老虎在没精打采地啃一根骨头。
- People say that the tiger is still lurk close to. 人们说那只老虎还躲在附近。
- It's dangerous to be so near to the tiger. 离老虎那么近是很危险的。
- A tiger was getting ready to jump on him. 有一只老虎即将向他扑去。
- She fought like a tiger to get what she wanted. 她竭力争取自己想要的东西。
- A soldier came up to her with a drawn saber. 一个士兵拔出马刀向她走来。
- The tiger loped off into the jungle. 那老虎跑进丛林中去了。
- The tiger is a representative of the cat family. 老虎是猫科动物的典型。
- He died after being mauled by a tiger. 他被老虎咬死了。
- I was given gas when they pulled my tooth out. 给我拔牙时用了一氧化二氮。
- The hunter hurled his spear at the tiger. 猎人用力把他的长矛向虎投去。
- The tiger dragged its kill into the jungle. 这只老虎拖着它的猎物进了丛林。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The tiger snarled frighteningly. 老虎发出可怕的吼声。
- This tooth is sensitive to cold. 这颗牙对冷过敏。
- Mike's wife have a big sweet tooth. 迈克的妻子非常喜欢吃甜食。
- The tiger's home is in the jungle. 老虎生活在丛林里。
