whir /ˈhwɝ, ˈwɚ/
  呼呼聲,颼颼聲(vi.)作呼呼聲,發颼颼聲(vt.)使呼呼響
  Whir v. i. [imp. & p. p. Whirred p. pr. & vb. n. Whirring.]  To whirl round, or revolve, with a whizzing noise; to fly or more quickly with a buzzing or whizzing sound; to whiz.
     The partridge bursts away on whirring wings.   --Beattie.
  Whir, v. t.  To hurry a long with a whizzing sound.  [R.]
  This world to me is like a lasting storm,
  Whirring me from my friends.   --Shak.
  Whir, n. A buzzing or whizzing sound produced by rapid or whirling motion; as, the whir of a partridge; the whir of a spinning wheel.
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  whir
       n : sound of something in rapid motion; "whir of a bird's
           wings"; "the whir of the propellers" [syn: whirr, whirring,
            birr]
       v : make a soft swishing sound; "the motor whirred"; "the car
           engine purred" [syn: whizz, whiz, whirr, birr, purr]
       [also: whirring, whirred]