单词	防弱點
释义	同GAP
随便看	beater shaft beater-sized paper beater sizing beater tow beater washing machine beat everything beat fat be at fault beat flat beat frequency beat-frequency detector beat frequency meter beat-frequency meter beat frequency oscillation beat frequency oscillator beat-frequency oscillator beat-frequency oscillator {=bfo} beat-frequency oscillator，bfo beat frequency oscillator｛=bfo｝ beat-frequency system beat generation beat gongs and drums, beat goose be at grass be at grips with