green belt

US /ˈɡriːn belt/
UK /ˈɡriːn belt/
"green belt" picture
1.

綠化帶, 綠帶

an area of open land around a city, on which building is restricted

:
The city council is committed to preserving the green belt.
市議會致力於保護綠化帶
New housing developments are often restricted in the green belt areas.
新的住房開發項目在綠化帶區域通常受到限制。