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单词	Pteraspis
释义	Pteraspis noun Pte·​ras·​pis -pə̇s : the type genus of Pteraspidae comprising small ostracoderms in which the dorsal armor is made up of 7 large plates Word History Etymology New Latin, from pter- + -aspis
随便看	ditchmosses ditchwater dite ditention ditentive diterpenoid dites ditetragonal ditheism ditheisms ditheist ditheistic ditheistical ditheists dithematic dither dithered ditherer ditherers dithering dithers dithery dithi- dithio- dithiocarbamate

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