sub·sti·tute /ˈsʌbstəˌtut, ˌtjut/
  代理,代理人,代用品,代替物(vt.)代替(vi.)替代,取代
  sub·sti·tute /ˈsəbstəˌt(j)ut/ 名詞
  取代,置換,代用品,代替者,代替物,取代物,置換物,置換物,代入,代替,置換(計算機)
  substitute
  取代
  substitute
  替代
  Sub·stit·ute n.  One who, or that which, is substituted or put in the place of another; one who acts for another; that which stands in lieu of something else; specifically Mil., a person who enlists for military service in the place of a conscript or drafted man.
     Hast thou not made me here thy substitute?   --Milton.
     Ladies [in Shakespeare's age] . . . wore masks as the sole substitute known to our ancestors for the modern parasol.   --De Quincey.
  Sub·stit·ute v. t. [imp. & p. p. Substituted p. pr. & vb. n. Substituting ]  To put in the place of another person or thing; to exchange.
     Some few verses are inserted or substituted in the room of others.   --Congreve.
  ◄ ►
  substitute
       adj 1: being a replacement or substitute for a regular member of a
              team [syn: second-string, substitute(a)]
       2: capable of substituting in any of several positions on a
          team; "a utility infielder" [syn: utility(a), substitute(a)]
       3: artificial and inferior; "ersatz coffee"; "substitute
          coffee" [syn: ersatz]
       n 1: a person or thing that takes or can take the place of
            another [syn: replacement]
       2: an athlete who plays only when another member of the team
          drops out [syn: reserve]
       3: someone who takes the place of another (as when things get
          dangerous or difficult); "the star had a stand-in for
          dangerous scenes"; "we need extra employees for summer
          fill-ins" [syn: stand-in, relief, reliever, backup,
           backup man, fill-in]
       v 1: put in the place of another; switch seemingly equivalent
            items; "the con artist replaced the original with a fake
            Rembrandt"; "substitute regular milk with fat-free milk"
            [syn: replace]
       2: be a substitute; "The young teacher had to substitute for
          the sick colleague"; "The skim milk substitutes for
          cream--we are on a strict diet" [syn: sub, stand in, fill
          in]
       3: act as a substitute; "She stood in for the soprano who
          suffered from a cold" [syn: deputize, deputise, step
          in]