su·per·add /ˌsupɚ/
  (v.)再加上;添加
  Su·per·add v. t. [imp. & p. p. Superadded; p. pr. & vb. n. Superadding.]  To add over and above; to add to what has been added; to annex, as something extrinsic.
     The strength of any living creature, in those external motion, is something distinct from, and superadded unto, its natural gravity.   --Bp. Wilkins.
     The peacock laid it extremely to heart that he had not the nightingale's voice superadded to the beauty of his plumes.   --L'Estrange.
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