open-and-shut [ˈopənənˈʃʌt]

例句:

• Windows, by definition, open -- and close.
  来自WSJ
• It's an open and shut case. The hospital is at fault.
  这件事一目了然，责任在医院一方。
  
• The murder was an open-and-shut case.
  这桩谋杀案很容易侦破。
  
• The law case is open and shut.
  这案件很清楚的.
  
• Choose growing sites that are fairly open and exposed.
  来自BBC
• The lack of open and intelligent discussion is complete.
  来自SA