Describe the basic learning stages of life in four-letter words.

1 years old when the appearance of the debut 10 years old when the homework is the most important 20 years old when the heart of the spring 30 years old when the workplace confrontation 40 years old body fat 50 years old playing mahjong 60 years old strong 70 years old often forget 80 years old shaking 90 years old lost 100 years old hanging on the wall I'm very happy to answer for the owner of the answer if there is a mistake, please forgive

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