Level 6 · word 16,373 of 20,000

hotbed

/ˈhɑːtˌbed/ American
  • n. 温床, 滋生地
Definition
  • n. a place where something, especially something bad, develops quickly
Example
The old warehouse became a hotbed of illegal activity after dark.
天黑之后,那座旧仓库变成了非法活动的温床。