out·grow /ˌaʊtˈgro/
  (vt.)過大而不適于,出生,長出
  Out·grow v. t. [imp. Outgrew p. p. Outgrown p. pr. & vb. n. Outgrowing.]
  1. To surpass in growing; to grow more than.
  2. To grow out of or away from; to grow too large, or too aged, for; as, to outgrow clothing; to outgrow usefulness; to outgrow an infirmity.
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  outgrow
       v 1: grow too large or too mature for; "I have outgrown these
            clothes"
       2: grow too large for [syn: overgrow]
       3: grow faster than
       [also: outgrown, outgrew]