listlessly
 (ad.)沒精打彩;不熱心地
 List·less, a.  Having no desire or inclination; indifferent; heedless; spiritless. “ A listless unconcern.”
    Benumbed with cold, and listless of their gain.   --Dryden.
    I was listless, and desponding.   --Swift.
 Syn: -- Heedless; careless; indifferent; vacant; uninterested; languid; spiritless; supine; indolent.
 -- List*less*ly, adv. -- List*less*ness, n.
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 listlessly
      adv : in a listless manner; "they shook hands rather listlessly"