Furthermore, highway network mostly is the trouble of technical grade and service low.

中小城市的道路网普遍存在着公路网技术等级低、服务水平差等问题。

youdao

Furthermore, highway network mostly is the trouble of technical grade and service low.

中小城市的道路网普遍存在着公路网技术等级低、服务水平差等问题。

youdao