多数细长的无鳞海水鱼，有大的胸鳍和退化的腹鳍。

Elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins.

youdao

多数细长的无鳞海水鱼，有大的胸鳍和退化的腹鳍。

Elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins.

youdao