In the south they are putting in a wide-gauge track to replace the old narrow-gauge lines.

在南面，他们正在铺设宽轨的铁道儿代替原先的窄轨的铁道。

youdao

In the south they are putting in a wide-gauge track to replace the old narrow-gauge lines.

在南面，他们正在铺设宽轨的铁道儿代替原先的窄轨的铁道。

youdao