背鳍;
The dorsal fin is ornamented with these two colours.
空气垂直舵由这两色装饰.
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.
The dorsal fin is spinous.
背鳍有很多刺.
The shark's dorsal fin was cut off by the fisherman.
鲨鱼的背鳍被渔夫割了下来.
A goldfish LanChou belongs to the egg, dorsal fin.
兰畴属于蛋种金鱼, 无背鳍.
a shark's dorsal fin
鲨鱼的背鳍
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