de·ten·tion /dɪˈtɛnʧən/
  挽留,延遲,拘留
  De·ten·tion n.
  1. The act of detaining or keeping back; a withholding.
  2. The state of being detained (stopped or hindered); delay from necessity.
  3. Confinement; restraint; custody.
     The archduke Philip . . . found himself in a sort of honorable detention at Henry's court.   --Hallam.
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  detention
       n 1: a state of being confined (usually for a short time); "his
            detention was politically motivated"; "the prisoner is
            on hold"; "he is in the custody of police" [syn: hold,
             custody]
       2: a punishment in which a student must stay at school after
          others have gone home; "the detention of tardy pupils"