Think of Jiuquan, Gansu;Yicheng, Shanxi;Chengde, Hebei;and Enshi, Hubei, all of which have implemented this, yet still have maintained low birth rates.

• 像甘肃酒泉、山西翼城、河北承德、湖北恩施都多年实施二孩政策，但仍保持了低生育率。