After the disease was pronounced extinct, in 1980, people stopped using the smallpox vaccine.
1980年,在宣布这种疾病绝迹之后, 人们停用了天花疫苗.
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The committee put enough restrictions on tax shelters to make them all but extinct.
委员会对减免所得税的手段严加限制,几乎予以根除.
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Scientists are attempting to compare features of extinct animals with living analogues.
科学家正试图把已灭绝动物的特征与现存类似动物相比较。
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Some species of animals have Become extinct Because they could not adapt to a changing environment.
有一些动物已经灭种了,因为它们不能适应环境的变化.
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这块化石有一个完整的头盖骨,这是一群现代鲸鱼已经灭绝的祖先。
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Australopithecus, Cro-Magnon, Neanderthal are to name but three extinct species.
南方古猿人、克罗马尼翁人、尼安得特尔人是三种灭绝物种的名字。
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Large large flightless auk of rocky islands off North Atlantic coast; extinct.
曾在远离北大西洋海岸的多岩岛屿上大型不会飞行的海雀;已灭绝。
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A group of mostly extinct primitive bony fishes characterized by armor-like bony scales.
大部分已绝迹的远古硬骨鱼类群,有甲壳状骨质鳞片。
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如今,送奶到户的服务在中国已经基本上销声匿迹了,同样随之消失的还有送奶工,他们曾经挨家挨户地递送瓶装的新鲜牛奶。
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去年,周制作了一些华南虎的假照片。而一般认为,野生华南虎在中国已灭绝。
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