形容词
中文翻译：背部的
同义词：
['dorsal', 'dorsal', "dorso-lateral例句：1. The animal's dorsal fin is used to swim efficiently.（这种动物的背鳍是用来游泳的。）2. The dorsal fin of the fish is a crucial part of its swimming mechanism.（鱼的背鳍是其游泳机制中至关重要的部分。）"]
例句：
-
1. The animal's dorsal fin is used to swim efficiently.
这种动物的背鳍是用来游泳的。
-
2. The dorsal fin of the fish is a crucial part of its swimming mechanism.
鱼的背鳍是其游泳机制中至关重要的部分。
-
3.The dorsal fin of the shark is used for propulsion.
鲨鱼的背鳍用于推进。