dens
A den is the home of certain types of wild animals such as lions or foxes.
A den is a secret place where people meet, usually for a dishonest purpose.
I could provide you with the addresses of at least three illegal drinking dens.
我能向你提供至少3个秘密非法饮酒窝点的地址。
If you describe a place as a den of a particular type of bad or illegal behaviour, you mean that a lot of that type of behaviour goes on there.
this den of iniquity called New York City.
这个被称作纽约市的罪恶之地。