sus·te·nance /ˈsʌstənən(t)s/
  生計,食物
  Sus·te·nance n.
  1. The act of sustaining; support; maintenance; subsistence; as, the sustenance of the body; the sustenance of life.
  2. That which supports life; food; victuals; provisions; means of living; as, the city has ample sustenance. “A man of little sustenance.”
     For lying is thy sustenance, thy food.   --Milton.
  ◄ ►
  sustenance
       n 1: a source of materials to nourish the body [syn: nutriment,
             nourishment, nutrition, aliment, alimentation,
            victuals]
       2: the financial means whereby one lives; "each child was
          expected to pay for their keep"; "he applied to the state
          for support"; "he could no longer earn his own livelihood"
          [syn: support, keep, livelihood, living, bread
          and butter]
       3: the act of sustaining life by food or providing a means of
          subsistence; "they were in want of sustenance"; "fishing
          was their main sustainment" [syn: sustentation, sustainment,
           maintenance, upkeep]