If there is too little, this artery Narrows and oxygen supplies are depleted.

如果雌激素过少，动脉就会收缩，供氧衰竭不足。

youdao

If there is too little, this artery Narrows and oxygen supplies are depleted.

如果雌激素过少，动脉就会收缩，供氧衰竭不足。

youdao