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birr

US [bɚ]
UK [bɜː]
  • n.冲力;强调;呼呼声
  • v.作飕飕声;飕飕(声中)移动
  • Web比尔;机械转动噪声;毕尔
Past Participle:birred  Present Participle:birring  Simple Present:birrs  
n.
1.
冲力,动力;强调
2.
飕飕声,呼呼声
v.
1.
作飕飕声;飕飕(声中)移动