单词	唱班
释义	同CHOIR
随便看	booster response booster rocket booster rod boosters booster seat booster separation booster servomotor booster session booster setting booster shot booster spring booster station booster storage battery boosters with detonator boosters without detonator booster system booster telephone circuit booster transformer booster transmitter booster unit booster vacuum pump booster valve booster venturi tube boost gage boost gauge