DICT.TW Dictionary Taiwan

 hot·bed /ˈhɑtˌbɛd/
 溫床,溫床

 Hot·bed n.
 1. Gardening A bed of earth heated by fermenting manure or other substances, and covered with glass, intended for raising early plants, or for nourishing exotics.
 2. A place which favors rapid growth or development; as, a hotbed of sedition.
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 hotbed
      n 1: a situation that is ideal for rapid development (especially
           of something bad); "it was a hotbed of vice"
      2: a bed of earth covered with glass and heated by rotting
         manure to promote the growth of plants