11.to be in motion
vehicle +在移动；在运转
Do not try to board the vehicle once it is in motion.在汽车行驶过程中请不要上车。
process, event +正在发生；在进行中；即将发生
His job as England manager begins in earnest now his World Cup campaign is in motion.世界杯的征战开始, 他作为英格兰队主教练的工作也就真正开始了。