green belt
noun [uncountable, countable, usually singular] (especially British English)an area of open land around a city where there are strict controls about building （城市周围的）绿化地带 New roads are cutting into the green belt. 一条条新路在逐渐吞噬着绿化地带。 Green belt development is carefully regulated. 绿化带发展受到严格监管。 The government promised to maintain the green belt. 政府承诺维护绿化带。
CultureIn Britain green belts are created to make sure that towns do not become too big and that there is some countryside for the people from the towns to enjoy. There are often strong protests when people are given permission to build on this land. In the US, a green belt is usually a nature area protected by a town or city. It is often a large park, with paths where people can walk. The town of Greenbelt, Maryland, was one of several created in this way in the 1930s as part of the New Deal programme of President Franklin D Roosevelt.Topics The environmentb2Oxford Collocations DictionaryGreen belt is used before these nouns:- land