单词	index fossil
释义	English American index fossilnoun [ C ] uk/ˈɪn.deks ˌfɒs.əl//ˈɪn.deks ˌfɑː.səl/specialized a fossil that is found in many places and comes from the same time in history, so that scientists can use it to decide how old certain rocks are Thesaurus: synonyms and related words Palaeontology & fossils ammonite ammonoid carbon dating fossil fossil record fossilize fossilized microfossil missing link palaeontology paleontology petrify radiocarbon dating index fossilnoun [ C ] /ˈɪn·deks ˌfɑs·əl/ earth science a fossil that is found in many places and comes from the same time in history, so that scientists can use it to decide how old certain rocks are
随便看	squaddie squadron squadron leader squalid squall squally squalor squamous squander squander a chance/an opportunity square square square square (sth) with sth square away something/someone square ball square brackets square dance square deal square deal square eyed square knot square knot square meal square off