DICT.TW Dictionary Taiwan

 whirr /ˈhwɝ, ˈwɚ/
 (v.)颼地飛;[馬達] 嗡嗡轉動

 whirr
      n : sound of something in rapid motion; "whir of a bird's
          wings"; "the whir of the propellers" [syn: whir, whirring,
           birr]
      v 1: make a soft swishing sound; "the motor whirred"; "the car
           engine purred" [syn: whizz, whiz, whir, birr, purr]
      2: make a vibrant sound, as of some birds [syn: churr]