region

n.(通常界限不明的)地区，区域，地方; 行政区; (一国除首都以外的)全部地区，所有区域

复数：regions

牛津词典

noun

（通常界限不明的）地区，区域，地方a large area of land, usually without exact limits or borders

the Arctic/tropical/desert, etc. regions 北极、热带、沙漠等地区

one of the most densely populated regions of North America北美人口最为稠密的地区之一

行政区one of the areas that a country is divided into, that has its own customs and/or its own government

the Basque region of Spain西班牙的巴斯克区

（一国除首都以外的）全部地区，所有区域all of a country except the capital city

（通常指有某种特性或问题的）身体部位a part of the body, usually one that has a particular character or problem

pains in the abdominal region腹部的疼痛