placoderms
/'plækədə:m/
盾
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hyetography, hyetological, hyetology, hyetometer, hyetometrograph, hyetometry, Hyfil, Hyfro, Hygeia, hygeian,
相似单词
plack, placket, placode, placoderm, Placodermi, placoderms, placodine, placodium, placodont, placoid,