ninetyfold
adjective uk/ˈnaɪn.ti.fəʊld/ us/ˈnaɪn.t̬i.foʊld/
九十倍的
ninety times as big or as much
a ninetyfold increase 九十倍的增长
ninetyfold
adverb uk/ˈnaɪn.ti.fəʊld/ us/ˈnaɪn.t̬ifoʊld/
以九十倍（地）
by ninety times
Their chance of contracting lung cancer is increased ninetyfold. 他们得肺癌的机会上升了九十倍。