trou·ble·some /-səm/
  (a.)傷腦筋的,麻煩的
  Trou·ble·some a. Giving trouble or anxiety; vexatious; burdensome; wearisome.
     This troublesome world.   --Book of Common Prayer.
     These troublesome disguises that we wear.   --Milton.
     My mother will never be troublesome to me.   --Pope.
  Syn: -- Uneasy; vexatious; perplexing; harassing; annoying; disgusting; irksome; afflictive; burdensome; tiresome; wearisome; importunate.
  -- Trou*ble*some*ly, adv. -- Trou*ble*some*ness, n.
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  troublesome
       adj : difficult to deal with; "a troublesome infection"; "a
             troublesome situation"