swim bladder

• n. 浮囊；鱼鳔

英英释义

Noun:

1. an air-filled sac near the spinal column in many fishes that helps maintain buoyancy

例句

用作名词 (n.)

1. The bladder is thin-walled and closed by a one-way valve.
   浮囊具有薄壁的结构并且通过单方向的阀门关闭。
2. The swim bladder is like a balloon.
   鱼鳔就像一只气球。

近反义词

【近义词】

• float 漂浮
• air bladder 气泡