托福单词ammonoid什么意思-ammonoid词组短语_例句_同义词
2022-12-19 09:49:42 来源:中国教育在线
ammonoid意思
[古生]菊石
ammonoid词组短语
ammonoid fauna:菊石动物群
ammonoid zone:菊石带
ammonoid fossil:菊石化石
ammonoid facies:菊石相
ammonoid assemblage:菊石组合
ammonoid同义词
n.
fossil
ammonoid例句
1.After each extinction,a rich variety of ammonoid species and body plans was replaced by a few free-floating types.
在每次物种灭绝之中,大量的菊石和体平面为少量浮游动物所替代。
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