趣英语 / dorsal例句

dorsal例句

a shark's dorsal fin
鲨鱼的背鳍

His dorsal fin was down and his huge pectorals were spread wide.
它的脊鳍朝下耷拉着,巨大的胸鳍大张着.

There are usually no dorsal pores in the first few intersegmental grooves.
身体前几个节间沟内经常无背孔.

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