suf·fi·cient /səˈfɪʃənt/
  (a.)足夠的,充分的
  sufficient
  充分
  Suf·fi·cient a.
  1. Equal to the end proposed; adequate to wants; enough; ample; competent; as, provision sufficient for the family; an army sufficient to defend the country.
     My grace is sufficient for thee.   --2 Cor. xii. 9.
  2. Possessing adequate talents or accomplishments; of competent power or ability; qualified; fit.
     Who is sufficient for these things?   --2 Cor. ii. 16.
  3. Capable of meeting obligations; responsible.
     The man is, notwithstanding, sufficient . . . I think I may take his bond.   --Shak.
  4. Self-sufficient; self-satisfied; content. [R.]
  Thou art the most sufficient (I'll say for thee),
  Not to believe a thing.   --Beau. & Fl.
  Syn: -- Enough; adequate; competent; full; satisfactory; ample.
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  sufficient
       adj : of a quantity that can fulfill a need or requirement but
             without being abundant; "sufficient food" [ant: insufficient]