a hotbed of somethingLOT/LARGE NUMBER OR AMOUNTa place where a lot of a particular type of activity, especially bad or violent activity, happens 某事物的温床〔尤指坏事或暴力活动〕
hotbed• You may know Quebec as a hotbed of ornery, croissant-munching separatists.• No longer does the complex have the reputation as a hotbed of Merseyside militancy.• The Ariadne, if I may put it that way, is a hotbed of super-sensitivity.• Vasey's, like any other establishment, was a hotbed of gossip.• Since the province was a hotbed of gentryresistance to the emancipation, confrontation looked a real possibility.• The NorthernBand was centred in Kurunagala district, which was long considered the hotbed of the crime.