英语词汇“mass extinction”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	mass extinction
释义	mass extinction noun DEFINITIONS1 1 a major event in which many or most species go extinct Non-avian dinosaurs were wiped out in the world’s fifth mass extinction, which occurred around 66 million years ago. Submitted by: Klinsman Hinjaya from Indonesia on 10/11/2018 Open Dictionary - November2018 Noun☞mass extinction
随便看	user base user experience user-friendly user group user guide userid username use up use your head use your imagination use your loaf ushanka usher usherette usher in usp uss ussie ustad usual usually usufruct usurer usurp usury

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