单词：whirrs
音标：[hwɜ:z] ；
n. 呼呼声( whirr的复数形式 )
v. 呼呼声( whirr的第三人称单数 )
v. 呼呼声( whirr的第三人称单数 )
n. sound of something in rapid motion
v. make a soft swishing sound
v. make a vibrant sound, as of some birds
v. make a soft swishing sound
v. make a vibrant sound, as of some birds