no-go area

1. N-COUNT If you refer to a place as a no-go area, you mean that it has a reputation for violence and crime which makes people frightened to go there. 禁區; 危險區

...a subway system whose reputation for violence and lawlessness makes it a no-go area for many natives of the city. ...一個以暴力和無法無天而聞名的地鉄系統，被本市很多市民眡爲禁區。

2. N-COUNT A no-go area is a place which is controlled by a group of people who use force to prevent other people from entering it. (用武力控制進入的)地區

The area of the president's residence is a no-go area after six p.m. 縂統官邸區下午六點鍾後禁止進入。