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adj. 绝种的；熄灭了的
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• Dinosaurs have been extinct for millions of years. 恐龙已绝种几百万年了。
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【同】gone, dead
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existence
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/iɡˈzistəns/
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n. 存在，实在；生存
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• Pollution poses a threat to the continued existence of this species. 污染对这一物种的继续生存造成了威胁。
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creature
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/ˈkri:tʃə/
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n. 生物，动物，家畜
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• We should teach the children to have respect for all living creatures. 我们应当教导孩子们尊重所有生物。
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• Man is a civil creature. 人是社会性动物。
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environment
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/inˈvaiərənmənt/
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n. 环境，外界；围绕
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• The little girl is not used to the new environment. 小女孩对新环境不习惯。
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【同】surrounding, circumstance
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活用思维导图：英语单词轻松记忆
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活用思维导图：英语单词轻松记忆 Practice