基本解释头足类,头足纲同根派生 cephalopoda相关词英汉例句Ammonites are a group of marine animals of the subclass Ammonoidea in the class Cephalopoda, phylum Mollusca.石菊是软体动物门头足纲石菊亚纲的一类水生动物。cephalopoda更多例句