rule out

phr

• ① 排除(=exclude)
  • You cannot rule out the possibility of failure.你不能排除失败的可能性。
  • You cannot rule that possibility out.=That possibility cannot be ruled out.你不能排除那种可能性。

• ② 使不可能;使行不通
  • The typhoon ruled out the holiday camping.台风使得假日露营不可行。