Ranchu There are two swim bladder due to internal or external factors have made one or two contract there can not maintain a balance lead to the disease this view was generally accepted.

兰寿有两个鳔，由于内部或外部因素使其中的一个或两个发生收缩，无法维持平衡导致发病，这种说法被普遍接受。

youdao

Ranchu There are two swim bladder due to internal or external factors have made one or two contract there can not maintain a balance lead to the disease this view was generally accepted.

兰寿有两个鳔，由于内部或外部因素使其中的一个或两个发生收缩，无法维持平衡导致发病，这种说法被普遍接受。

youdao