单词	prechelonian
释义	prechelonian noun pre·​chelonian ¦prē+ : an actual or hypothetical primitive reptile considered to be ancestral to modern turtles Word History Etymology pre- + chelonian
随便看	ditentive diterpenoid dites ditetragonal ditheism ditheisms ditheist ditheistic ditheistical ditheists dithematic dither dithered ditherer ditherers dithering dithers dithery dithi- dithio- dithiocarbamate dithiocarbamates dithiocarbamic acid dithionate dithionates

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