This is the 5281st most frequent Chinese word.
中东
"Middle East"
Here, 中东 is a geographical proper noun referring to the Middle East.
中东是一个富有历史和文化的地区。
The Middle East is a region rich in history and culture.
Here, 中东 is used as an adjective modifying 地区, signifying the region referred to as the Middle East.
中东地区的石油资源极为丰富。
The Middle East has extremely abundant petroleum resources.
Here, 中东 is used as a contextual descriptor for a specific issue related to this region.