Large order of gastropods comprising univalve mollusks that have a single gill resembling a comb.

腹足类的一个很大的目，包含单壳软体动物，有一个梳状鳃。

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Large order of gastropods comprising univalve mollusks that have a single gill resembling a comb.

腹足类的一个很大的目，包含单壳软体动物，有一个梳状鳃。

youdao