betwixt and between
  中立的,模稜兩可的,懸而未決,動搖不定
  Be·twixt prep.
  1. In the space which separates; between.
     From betwixt two aged oaks.   --Milton.
  2. From one to another of; mutually affecting.
  There was some speech of marriage
  Betwixt myself and her.   --Shak.
  Betwixt and between, in a midway position; so-so; neither one thing nor the other. [Colloq.]
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