资料来源 : pyDict

助力器

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Strengthener \Strength"en*er\, n.
   One who, or that which, gives or adds strength. --Sir W.
   Temple.

资料来源 : WordNet®

strengthener
     n : a device designed to provide additional strength; "the
         cardboard backing was just a strengthener"; "he used
         gummed reinforcements to hold the page in his notebook"
         [syn: {reinforcement}]