英语词汇“index fossil”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	index fossil
释义	Word Frequency index fossil noun a fossil species that characterizes and is used to delimit a geological zone Also called: zone fossil
随便看	dump dumpbin dumpcart dumpee dumper dumper truck dumper-truck dumpier dumpiest dumpily dumpiness dumping rumrunner rum-running Rumsfeld rum toddy rum truffle run run a bath runabout runabout ticket run across run after runagate run along

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