be complicated by

英 美
  • 并发
  • be v.有;在;是;到达;拜访
  • by prep.靠近;通过;被;经由;不迟于adv.经过;在旁边;靠近
  • complicated adj.复杂难懂的;结构复杂的动词complicate的过去式和过去分词.
    1. His disease was complicated by pneumonia.
      他的病因肺炎并发症而变得更严重。