co·mes·ti·ble /kəˈmɛstəbəl/
  (a.)可吃的食物
  Co·mes·ti·ble a.  Suitable to be eaten; eatable; esculent.
     Some herbs are most comestible.   --Sir T. Elyot.
  Co·mes·ti·ble, n. Something suitable to be eaten; -- commonly in the plural.
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  comestible
       adj : suitable for use as food [syn: edible, eatable] [ant: inedible]
       n : any substance that can be used as food [syn: edible, eatable,
            pabulum, victual, victuals]