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became extinct

became extinct

became extinct

became extinct

1

Scientists do not know why dinosaurs became extinct .

科学家不知道恐龙为何绝种了。

2

England used to be the native home of Brown Bears , but they became extinct around the 11th century .

英格兰曾是棕熊的栖息地，但是在 11世纪左右就灭绝了。

4

When prehistoric man arrived in new parts of the world , something strong happened to the large animals; they suddenly became extinct.

当史前的人类到达世界的一个新的地方时，那里的大型动物就会一个发生奇怪的现象。

5

If food became scarce at the time the dinosaurs became extinct 65 million years ago, this could have made it harder for them to survive.

六千五百万年前是恐龙灭绝的时期，如果当时食物变得匮乏，那么恐龙就更难存活下来。

6

8

Successions of new species emerged , evolved and became extinct .

新的物种交替产生，进化直至灭绝。

9

But before they became extinct , big coupes were kings of the automotive jungle.

在彻底绝迹之前，大型双门轿跑一直是车市的王者。

11

The dinosaurs became extinct because Yao Ming needed breakfast .

恐龙绝种了，因为姚明要吃早餐了。

13

There were once eight tiger subspecies, but three became extinct during the 20th century .

老虎曾经有过一共 8 个亚种，但其中三个亚种在 20世纪灭绝。

15

In stream communities , few groups of animals became extinct.

在河流生物群落中，只有少数动物灭亡；

16

Grey whales became extinct in the North Atlantic in the 18th centuries and have not been seen there since .

自从 18世纪北大西洋的灰鲸灭绝以来，在该地区就再没发现过灰鲸的身影。

18

As native species became extinct, new ones came to the city .

当本地物种灭绝，新的物种来到这座城市。

19

Dinosaurs became extinct millions of years ago .

恐龙数百万年前就消亡了。

20

It is good men became extinct , good man is seemingly cheats .

可见好男人果然绝种了，貌似好男人的都是骗子。

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