是“10,9,8,7,6,5,4,3,2,1,0,点火,起飞”
还是“10,9,8,7,6,5,4,3,2,1,0,启动,升空,升空”
还是“10,9,8,7,6,主引擎开始启动,5,4,3,2,1,0,某某卫星发射上天”