2020-04-24

谚语：a young idler, an old beggar.少壮不努力，老大徒伤悲。

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A leopard can not change its spots. 江山易改，本性难移。

There are some things that we couldn‘t understand when we were young,but when we finally understood, we were not young anymore.

有些事情，当我们年轻的时候无法懂得，当我们懂得的时候已不再年轻。