Take the children to the park's playground to play, he wants to play the flying chair, then go play, 20 yuan a person, three minutes, now the money is really good to earn at that time, the one dollar, the shake-shake machine can shake for five minutes, right? This kind of argument has height restrictions. Less than 1m2 can not play. A child may be 1m16, 17. His father said that he can still play last month. This month, he can't play. He is more angry. The children are also very disappointed. It may be because the shoes he wore last month are relatively high.