over·work /ˌovɚ/
  過度操勞,過度工作(vt.)(vi.)(使)工作過度
  over·work /ˌovɝˈwɝk/ 及物動詞
  過度活動,過分勞累,工作過度,過勞
  O·ver·work v. t. [imp. & p. p. Overworked or Overwrought p. pr. & vb. n. Overworking.]
  1. To work beyond the strength; to cause to labor too much or too long; to tire excessively; as, to overwork a horse.
  2. To fill too full of work; to crowd with labor.
     My days with toil are overwrought.   --Longfellow.
  3. To decorate all over.
  O·ver·work, v. i. To work too much, or beyond one's strength.
  O·ver·work, n. Work in excess of the usual or stipulated time or quantity; extra work; also, excessive labor.
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  overwork
       n : the act working too much or too long; "he became ill from
           overwork" [syn: overworking]
       v 1: use too much; "This play has been overworked"
       2: work excessively hard; "he is exploiting the students" [syn:
           exploit]