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1. Oxford Dictionary

   necessity

   • IPA[nɪˈsɛsɪti]

   英式

   • n.
     the state or fact of being required；the state of being unavoidable

   • noun: necessity, plural noun: necessities

2. • 釋義
   • 相關詞
   • 片語

   n.

   名詞

   • 1. the state or fact of being required the necessity of providing parental guidance the overriding theme is the necessity for choice 同義詞 essential requirement, prerequisite, indispensable thing/item, essential, requisite, ... 更多necessary, fundamental, basic, sine qua non, desideratum
   • ▪ the state of being unavoidable the necessity of growing old 同義詞 inevitability, unavoidability, certainty, inescapability, inexorability, ... 更多ineluctability
   • ▪ a situation enforcing a certain course of action political necessity induced him to consider it 同義詞 force/pressure of circumstance, need, obligation, call, exigency, ... 更多crisis, emergency, urgency, force majeure
   • 2. an indispensable thing a good book is a necessity when travelling 同義詞 essential requirement, prerequisite, indispensable thing/item, essential, requisite, ... 更多necessary, fundamental, basic, sine qua non, desideratum
   • 3. the principle according to which something must be so, by virtue either of logic or of natural law.
   • ▪ a condition that cannot be otherwise, or a statement asserting this.

   logical necessity

   • n.
     that state of things which obliges something to be as it is because no alternative is logically ...

   Oxford Dictionary

   logical necessity

   • n.
     that state of things which obliges something to be as it is because no alternative is logically ...

   Oxford American Dictionary

   of necessity

   • ph.
     unavoidably

   Oxford American Dictionary

   of necessity

   • ph.
     unavoidably

   Oxford Dictionary

   necessity is the mother of invention

   • ph.
     when the need for something becomes essential, you are forced to find ways of getting or ...

   Oxford Dictionary

   necessity is the mother of invention

   • ph.
     when the need for something becomes imperative, you are forced to find ways of getting or ...

   Oxford American Dictionary

   片語

   • necessity is the mother of invention
   • of necessity
3. • 更多解釋

   necessity

   • IPA[nəˈsesədē]

   美式

   • n.
     the fact of being required or indispensable: the necessity of providing parental guidance should be apparent the overriding theme is the necessity for choice

   Oxford American Dictionary