sonic vacating聲空化
VACATING THE STANDS撤展
sonic-vacating method聲空化方法
ultrasonic sonic-vacating超聲聲空化
the time of vacating runway占用跑道時間
1.You might envision passengers standing and waiting for others to vacate a seat so that they may limber up.
漢你能想象到乘客們站立著等待其他人空出座位,那么他們就能放松下了。