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牧牧:还记得你五岁那年的冬天吗?每天清晨,爸爸总是带着你到离家不远的公园跑步。最初,你跑一两圈就累了,停下来,
Grazing: Remember the winter when you were five years old? Every morning, Dad always takes you to a park not far from home. At first, you were tired after a couple of laps and stopped.