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	swallowable swallow bug swallow dive swallower swallower swallow fish swallow flycatcher swallow fork swallow hawk swallow hole swallowlike swallowling swallow plover swallow roller swallows swallow shrike swallowtail swallowtail swallowtail butterfly swallowtail coat swallow-tailed swallow-tailed duck swallow-tailed flycatcher swallow-tailed gull swallow-tailed hawk

英语词典包含332784条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。