must /məs(t), ˈmʌst/
  必須,未發酵葡萄汁,絕對必要的事物(v.)aux.必須
  must /ˈməst/ 名詞
  鮮葡萄汁,果汁,必須
  must
  *
  Must, n.
  1. The expressed juice of the grape, or other fruit, before fermentation. “These men ben full of must.”
     No fermenting must fills . . . the deep vats.   --Longfellow.
  2.  Mustiness.
  Must v. i. ∨ auxiliary.
  1. To be obliged; to be necessitated; -- expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to the laws.
  2. To be morally required; to be necessary or essential to a certain quality, character, end, or result; as, he must reconsider the matter; he must have been insane.
     Likewise must the deacons be grave.   --1 Tim. iii. 8.
     Morover, he [a bishop] must have a good report of them which are without.   --1 Tim. iii. 7.
  Note: ☞ The principal verb, if easily supplied by the mind, was formerly often omitted when must was used; as, I must away. “I must to Coventry.” --Shak.
  Must, v. t. & i. To make musty; to become musty.
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  must, musth a.  Zool. Being in a condition of dangerous frenzy, usually connected with sexual excitement; -- said of adult male elephants which become so at irregular intervals, typicaly due to increased testosterone levels. -- n.  (a) The condition of frenzy. (b) An elephant in must.
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  must
       adj : highly recommended; "a book that is must reading" [syn: must(a)]
       n 1: a necessary or essential thing; "seat belts are an absolute
            must"
       2: grape juice before or during fermentation
       3: the quality of smelling or tasting old or stale or mouldy
          [syn: mustiness, moldiness]