out of whack
  出故障,不正常;不一致,不相稱
  Whack, n.
  1. A smart resounding blow.  [Colloq.]
  2. A portion; share; allowance. [Slang]
  -- Out of whack, out of order. [Slang]
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  out of whack
       adj : out of balance or out of adjustment; "the front wheel of my
             bicycle is out of whack"