whirr /wx(r)US: hw-; hws/ n (sing only) sound (as) of a bird's wings moving quickly, or of wheels, etc turning fast: (僅用單破) 呼呼盛; IRBS 聲 (如鳥(niǎo)翼迅速鼓動(dòng), 或輪子快速旋轉(zhuǎn)的聲音)： the ~ of an aircrafts' propellers. 飛機(jī)螺旋槳的呼呼聲。 vi [VP2A, C] make such sounds: 作呼呼聲; 發(fā)聲： A bird ~ed past. 一只鳥(niǎo)颶臺(tái)航飛過(guò)去了。