1. 地区;地带;行政区域
    A region is a large area of land that is different from other areas of land, for example because it is one of the different parts of a country with its own customs and characteristics, or because it has a particular geographical feature.

region

    e.g. ...Barcelona, capital of the autonomous region of Catalonia.
           加泰罗尼亚自治区首府巴塞罗那
    e.g. ...a remote mountain region.
           边远山区

2. （首都以外的）各地区，外省
    The regions are the parts of a country that are not the capital city and its surrounding area.

region在线翻译

    e.g. ...London and the regions...
           伦敦和外省地区
    e.g. Tax incentives would be used to attract firms to the regions, away from the South-East.
           将采取税收优惠政策把公司吸引到东南部以外的各地区。

3. （身体的）部位，区域
    You can refer to a part of your body as a region.

    e.g. ...the pelvic region.
           骨盆区
    e.g. ...the frontal region of the brain.
           大脑的额区

4. （指数量）差不多，在…左右，大约
    You say in the region of to indicate that an amount that you are stating is approximate.

    e.g. The scheme will cost in the region of six million pounds.
           这个计划将耗资大约600万英镑。