twentyfold       
 adjective uk/ˈtwen.ti.fəʊld/ us/ˈtwen.t̬i.foʊld/
 二十倍的
twenty times as big or as much
  a twentyfold increase in the number of complaints 投诉数量二十倍的增加 
 twentyfold       
adverb uk/ˈtwen.ti.fəʊld/ us/ˈtwen.t̬i.foʊld/
 (以)二十倍(地)
by twenty times
  Revenue grew almost twentyfold. 收入几乎增长了二十倍。