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	index fossil noun : a fossil that is usually of narrow time range and wide spatial distribution and that is used in the identification of related geologic formations (as in locating new petroleum reserves)
随便看	voyeuristic voyeuristically voëtian VP v-particle VPM VPP VPS VR vrack vraic vraicking vrbaite vrbl vredenburgite vrg vriesia vrille v roof vroom vrouw vrow vs VS v's

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