['ɒstrəkəʊdɜːm]

['ɒstrəkoʊdɜːm]

[古生]n.;[古生]n new

ostracoderm的英文翻译是什么意思,意思释义:

英英释义

Noun:extinct fish-pke jawless vertebrate having a heavily armored body; of the Paleozoic