at leisure
  閒著的,有空的;從容不迫地
  Lei·sure n.
  1. Freedom from occupation or business; vacant time; time free from employment.
     The desire of leisure is much more natural than of business and care.   --Sir W. Temple.
  2. Time at one's command, free from engagement; convenient opportunity; hence, convenience; ease.
     He sighed, and had no leisure more to say.   --Dryden.
  At leisure. (a) Free from occupation; not busy. (b) In a leisurely manner; at a convenient time.
  at leisure
       adj : idle; between jobs; (euphemism for `unemployed') [syn: at
             leisure(p)]
       adv : in an unhurried way or at one's convenience; "read the
             manual at your leisure"; "he traveled leisurely" [syn:
             leisurely]