’But the rocks are full of the bones of extinct animals--mammoths and mastodons and enormous reptiles which lived here long before man was ever heard of.’

“但是岩石里尽是已经绝迹的动物的骨骼化石--在人类出现以前很久在地球上生活过猛犸、柱牙像和庞大的爬行动物。”

No, no, be easy on that score; the family is extinct

“没有了，没有了这方面你放心好了，那个家族已经绝后了。

People have proposed all sorts of hypotheses to explain why dinosaurs have become extinct .

〞人们提出种种假设, 试图说明恐龙为什么会灭绝。〞

The creature called elk in Europe is a member of the species (Alces alces)known in North America as moose. The name is also applied to the extinct Irish elk.

Alces alces在欧洲通称麋鹿，在北美称为驼鹿。elk一词亦可适用于已绝灭的爱尔兰麋)。

Any of various extinct lungfishes of the genus Ceratodus,of the Triassic and Cretaceous periods.

澳洲肺鱼，角齿鱼三叠纪和白垩纪的一种已灭绝的角齿鱼属肺鱼

A zebralike mammal(Equus quagga)of southern Africa,extinct since the late19th century.

白氏斑马一种(南非野驴马属)似斑马的哺乳动物，原产于南非，自19世纪后期以来就绝种了

The report states that despite sustained efforts over the past year , much remains to be done to prevent the tiger from becoming extinct early next century.

报告明确指出，尽管有过去一年的不断努力，但是仍然有大量工作需要去完成，以避免老虎在下个世纪初灭绝。

The retreat of Rocca Bianca was at the top of a small mountain, which no doubt in former days had been a volcano--an extinct volcano before the days when Remus and romulus had deserted Alba to come and found the city of Rome

比卡山凹是在一座小山的山顶上，在从前这儿无疑的是一座火山，一座在雷默斯和罗默罗斯逃出阿尔伯，来建筑起罗马城以前就熄灭了的火山。

Many animals are already extinct , or getting close to extinction.

不少动物已经灭绝或滨临灭绝。

Any of various very large extinct aquatic lizards of the genus Mosasaurus,having modified limbs that served as paddles for swimming.These lizards,thought to have been viviparous and carnivorous,may be early ancestors of the modern monitor lizard.

沧龙任一种沧龙属的形体很大且已绝迹的水生蜥蜴，长有退化肢，作为游泳的桨。这些蜥蜴，尽管是胎生的食肉动物，可能是现在蜥蜴的早期祖先

The common, or European, tortoise (Testudo graeca)has a shell about 7-10 in. (18-25 cm)long. Most species of giant tortoises on the Galápagos and other islands are now rare or extinct .

常见的欧洲陆龟(T.graeca)甲壳长约18～25公分。加拉帕戈斯等岛屿上大多数的巨龟品种现在已很稀少或灭绝了。

A large extinct ground sloth of the family Megatheriidae of the Miocene Epoch through the Pleistocene Epoch.

大懒兽中新世至更新世时期大懒兽科之栖于地面的已绝迹的大树懒

The giant panda is an endangered species,ie is in danger of becoming extinct .

大熊猫是面临绝种危险的动物.

Nevertheless, not doing this way, these species will then become extinct .

但不这样，这个物种就会灭绝。

When one or more predator animals become extinct , there is an increase of the animals that they use for food.

当一种或多种食肉动物灭绝了，它们捕食的动物就会增加。

A large,clumsy,flightless bird(Raphus cucullatus,formerly of the island of Mauritius in the Indian Ocean,that has been extinct since the late17th century.

渡渡鸟，孤鸽以前生于印度洋的毛里求斯岛上的一种大而笨重不会飞的鸟(渡渡鸟)，17世纪即已绝种

The dodo is extinct )or to what is extinguished or inactive

渡渡鸟绝种了)或灭绝的或不活动的

The dodos is extinct .

渡渡鸟已经绝种了。

It would be a war with unprecedented brutality, and mankind would become extinct , like the dinosaurs, in 2006 when nuclear warfare finally destroys the Earth.

而这一次的战争将是史无前例的残酷，人类最终会在2006年由于核战而如恐龙般绝迹于这个千疮百孔的世界。

Since special means of plant preservation have been adopted, the rare plants in the Three Gorges Reservoir Region will not become extinct as a result of the 135-meter water storage in the Reservoir.

负责三峡库区植物保护工作的中国科学院武汉植物研究所专家日前表示，由于采取了特殊的植物保护方式，三峡水库蓄水至135米水位后，

New Data on Three Extinct Formosan Languages

关于三种平埔族语言的新数据

An arthropod of the order Xiphosura,which includes the horseshoe crab and many extinct forms.

剑尾目动物剑尾目中的一种节肢动物，包括鲎及许多已灭绝的节肢动物

belemnite:a cone-shaped, fossilized internal shell of any of an extinct genus of cephalopods related to the cuttlefish.

箭石:由灭绝的与乌贼有血亲关系的头足纲动物的内壳形成的尖锥状化石。

Nothing could rekindle her extinct passion.

她激情已逝,无从心回意转.

Scientists do not know why dinosaurs became extinct , but some theories postulate that changers in geography, climate, and sea levels were responsible.

科学家不知道恐龙为何绝种了，但是一些理论推断是地理，气候和海平面的变化造成的。

Dinosaurs are extinct animals.

恐龙是已经灭绝的动物。

Any of various extinct ,often gigantic,carnivorous or herbivorous reptiles of the orders Saurischia and Ornithischia that were chiefly terrestrial and existed during the Mesozoic era.

恐龙一种主要生活在中生代时期的陆栖动物，是庞大的食肉或食草爬行类动物，属龙盘目与鸟盘目，已绝种

Dinosaurs have been extinct for millions of years

恐龙已绝种几百万年了。

Any of various flightless ostrichlike birds of the family Dinornithidae,native to New Zealand and extinct for over a century.

恐鸟产自新西兰，已灭绝一个多世纪的任何恐鸟科的无翅的，似鸵鸟的鸟

Three of the eight subspecies of tiger-the Bali, Caspian and Javan tigers are extinct .

老虎8个亚种中的3个--巴厘虎、里海虎和爪哇虎已经灭绝。

extinct halo

n.消灭晕,死晕

extinct lake

n.干涸湖,消亡湖,死湖

extinct laws

n.失效的法令

extinct books

绝版书

extinct state

已消灭的国家

become extinct

v.灭绝

extinct element

n.灭绝元素,灭迹元素

extinct species

灭绝种

extinct nuclide

n.熄灭的核素

extinct volcano

死火山

extinct language

死语, 消亡语

extinct rift valley

n.死裂谷

extinct radionuclide

n.放射性核素存在过但现已衰变完而消灭

extinct radioactivity

n.衰亡的放射性,熄灭的放射性

extinct geothermal area

n.已消逝的地热区,古地热区

permanently extinct lake

n.永干湖,永久干涸湖

extinct animals and plants

绝种动植物

extinct natural radionuclides

消失的天然放射性核素

tail after possibility of issue extinct

子嗣可能不存在时的限定继承

tenant in tail after possibility of issue extinct

子嗣可能不存在时的限嗣继承产保有人