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This report is from David Cook of our Science Unit: "Why did the dinosaurs become extinct?"

以下是来自我们科学部的戴维·库克的报道:“为什么恐龙灭绝了?”

柯林斯例句

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.

辞典例句

At this point all life on land would become extinct.

此时地面上所有的生命都将绝迹.

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

但不这样, 这个物种就会灭绝.

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What a pity that this kind of rare animal has become extinct.

这种珍稀生物已无噍类了,真是可惜啊.

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The parent species may survive indefinitely thereafter, or it may become extinct.

以后本家物种也许能继续存在, 也许会灭绝,说不准.

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If an animal might become extinct, we say it is endangered.

如果一种动物有绝迹的可能, 我们称它为濒临绝种.

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If You Do Not Change, You Can Become Extinct.

如果你不改变, 你就会被淘汰.

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How Many Species Become Extinct Each Year?

每年有多少物种灭绝?

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Then Hades will become extinct forever.

不复存在.

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Accordingly, some species become extinct.

因此, 一些种变成熄灭.

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Many plants and animals have become extinct.

很多动植物已经绝种.

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This species has become extinct soon.

这一生物品种快要绝种了.

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If we continue to destroy the countryside many more animal will become extinct.

我们若继续破坏自然环境,将会有更多的动物绝种.

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If we continue to destroy the countryside many more animals will become extinct.

我们若继续破坏自然环境,将会有更多的动物绝种.

辞典例句