frontier city

基本解释

Quetta is a frontier city about a three-hour drive from Kandahar in Afghanistan.
基达是一座前线城市，距阿富汗的坎大哈有三至四小时车程。
Guangxi Dongxing city is a frontier city of China and Vietnam adjacent, here is home to China jing.
广西东兴市是我国与越南邻接的一个边疆市，这里是我国京族的聚居地。
Urumqiis the Oklahoma City of China, a dusty frontier city with sand, oil and a large ethnic group – the Uighurs – which distinguishes the western Xinjiang region from the rest of the mainland.
乌鲁木齐——中国的俄克拉荷马城，是一座尘土飞扬、以沙子和石油著称的边境城市。聚居于此的大批维吾尔族人，也是位于中国西部的新疆有别于内地其他地区的一大特征。

But the Pakistani frontier city of Peshawar is still teeming with exiled Pushtun commanders, who say the only thing holding them back is the absence of support from the United States and its allies.
ECONOMIST: The military campaign: Steadying nerves The
In Pakistan, Taliban militants have tightened their grip on three sides of Peshawar, a strategic city of 3 million people near the frontier with Afghanistan.
NPR: Taliban Tightens Grip Near Northern Pakistan Border