outpost
/ˈautpəust; `aʊtˌpost/ n
1 (group of soldiers at an) observation point some distance away from the main army 前哨（站）.
2 any distant settlement 偏远居民区
a missionary outpost in the jungle 丛林区传教居民点
(joc 谑) You'd better get petrol here where we're going is the last outpost of civilization. 你最好在这儿加足汽油--咱们要去的算是人类文明的边缘地区.