pen·ny·worth /ˈpɛniˌwɚ/
  一便士的價錢,價值一便士之物,少額,交易
  Pen·ny·worth n.
  1. A penny's worth; as much as may be bought for a penny. “A dear pennyworth.”
  2. Hence: The full value of one's penny expended; due return for money laid out; a good bargain; a bargain.
     The priests sold the better pennyworths.   --Locke.
  3. A small quantity; a trifle.
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  pennyworth
       n : the amount that can be bought for a penny [syn: penn'orth]