Online Google Dictionary

unless 中文解釋 wordnet sense Collocation Usage Collins Definition
Conjunction
/ənˈles/,/ˌən-/,
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Except if (used to introduce a case in which a statement being made is not true or valid),
  1. Except if (used to introduce a case in which a statement being made is not true or valid)
    • - unless you have a photographic memory, repetition is vital
    • - manuscripts cannot be returned unless accompanied by a self-addressed envelope

  1. Unless, first published by Fourth Estate, an imprint of Harper Collins in 2002, is the final novel by Canadian writer Carol Shields. Semi-autobiographical, it was the capstone to Shields's writing career: she died shortly after its publication in 2003. ...
  2. Obsolete form of unless
  3. Except on a specified condition; if not
  4. the manufacturer agrees to accept the product directly into their inventory from the purchaser, All sales are SPECIAL ORDER and FINAL. Possible shipping, restocking and other fees might apply that are at the expense of the purchaser. ...