DICT.TW Dictionary Taiwan

 hum·mer /ˈhʌmɚ/
 發嗡嗡聲的東西,蜂鳥

 Hum·mer n.
 1. One who, or that which, hums; one who applauds by humming.
 2. Zool. A humming bird.
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 hummer
      n 1: a singer who produces a tune without opening the lips or
           forming words
      2: (baseball) a pitch thrown with maximum velocity; "he swung
         late on the fastball"; "he showed batters nothing but
         smoke" [syn: fastball, heater, smoke, bullet]