When a father gives to his son, both laugh; When a son gives to his father, both cry.
当父亲给予儿子时，两人都笑了;当一个儿子给了他的父亲，两人都哭了。
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Dad
当父亲给予儿子时，两人都笑了;当一个儿子给了他的父亲，两人都哭了。