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]