不必要地;多餘地
Needless \Nee"dless\, a. 1. Having no need. [Obs.] Weeping into the needless stream. --Shak. 2. Not wanted; unnecessary; not requiste; as, needless labor; needless expenses. 3. Without sufficient cause; groundless; cuseless. ``Needless jealousy.'' --Shak. -- {Need"less*ly}, adv. -- {Need"less*ness}, n.
needlessly adv : without need; "it would needlessly bring badness into the world"