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1.
Scientists say that seventy-four different kinds of living things go extinct every day!
科学家说每天有七十四种不同种类的生物灭绝
2.
That species disappeared in the Ice Age.
那种生物在冰期就灭绝了。
3.
A species can become endangered for different reasons.
一种生物濒于灭绝有多种原因。
4.
any of numerous extinct terrestrial reptiles of the Mesozoic era.
许多已经灭绝的中生代陆栖爬行动物。
5.
Wild life is under threat everywhere.
野生动物到处受到 (灭绝的) 威胁。
6.
Many animals are already extinct, or getting close to extinction.
不少动物已经灭绝或滨临灭绝。
7.
The extinction of key species could have cascading effects throughout the food web.
关键物种的灭绝可能通过食物链产生级联效应。
8.
Many species have disappeared or is going to disappear in future, which makes declines of biological diversity.
不少物种已经绝迹或濒临灭绝,导致生物多样性的衰减。
9.
In the struggle for life, the species, which had not been successful, died out.
在生存竞争中,不能成功的物种就灭绝了.
10.
We ought to be doing our best to save endangered species.
我们应该竭尽全力挽救濒于灭绝的生物。
11.
Paleontologists know plenty about the demise of the dinosaurs.
古生物学家对有关恐龙灭绝知道的很多。
12.
Carboniferous Extinction and Influence on Evolution of Reef Communities
石炭纪生物绝灭事件对造礁群落的影响
13.
This kind of animal is in danger of becoming extinct.
这种动物有灭绝的危险。
14.
a species threatened by/with extinction
有灭绝之虞的物种.
15.
extinct fishlike jawless vertebrate having a heavily armored body; of the Paleozoic.
已经灭绝的长有很重披甲的鱼形无颚动物;古生代的生物。
16.
exterminate all the inhabitants of the village
灭绝村中所有的生灵
17.
After each extinction, it took upwards of 10 million years for biological richness to recover.
每一次物种灭绝以后,大约需要一千万年来恢复生物多样性。
18.
The Triassic period ended 210m years ago with another mass extinction of sea creatures, and some land animals as well.
2.1亿年前三叠纪末期,大批海洋生物和部分陆地动物灭绝;