单词	protaxis
释义	protaxis noun prot·​axis "+ : the line of initial uplift or the core in a mountain system or range Word History Etymology New Latin, from prot- + axis
随便看	echeloned echeloning echelonment echelons echenees echeneid echeneididaes Echeneis echeneises eches echeveria echeverias echeverría Echeverría (Álvarez) echeverría álvarez echi echia echidna echidnae echidnas Echidnidae echidnophagae echidnophagas echimyine Echimys

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