夜晚,一轮明月悬挂天空,每一位夜行的人都会发现,无论你向什么方向走,月亮总是“跟”着你走。当你加快步伐时,它也加快步伐,当你止步时,它也“止步”。这是为什么呢? 我们知道,观察一个物体是否运动,是要有“参照物”的。人在行走时,你会发现你周围相对地面静止的物体(如房屋、树木、电线杆等等)均是“向后退”的,这是因为你已经自学或不自觉地选择了“你”为参照物,这 At night, a bright moon hangs in the sky, and every night-traveler will find that no matter where you go, the moon always follows you. It also steps up as you step up, and it “stops” when you stop. Why is this? We know that to observe whether an object is moving, it is necessary to have a “reference object.” When walking, you may find that objects (such as houses, trees, telephone poles, etc.) that are relatively stationary around you are “backwards” because you have chosen to " Reference, this