throw-away
  丟棄
  throwaway
       adj 1: thrown away; "wearing someone's cast-off clothes";
              "throwaway children living on the streets"; "salvaged
              some thrown-away furniture" [syn: cast-off(a), discarded,
               throwaway(a), thrown-away(a)]
       2: intended to be thrown away after use; "throwaway diapers"
          [syn: throwaway(p)]
       n 1: a homeless child who has been abandoned and roams the
            streets [syn: street arab, gamin]
       2: an advertisement (usually printed on a page or in a leaflet)
          intended for wide distribution; "he mailed the circular to
          all subscribers" [syn: circular, handbill, bill, broadside,
           broadsheet, flier, flyer]
       3: words spoken in a casual way with conscious under-emphasis