What does a fish breathe air through鱼怎么呼吸
问题描述：
What does a fish breathe air through
鱼怎么呼吸
答
鱼用鳃呼吸 fish breathe by gill
What does a fish breathe air through
鱼怎么呼吸
鱼用鳃呼吸 fish breathe by gill