更换封面

A society grows great when old men plant trees whose shade they know they shall never sit in.

A society grows great when old men plant trees whose shade they know they shall never sit in.

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当一个人虽然知道没有人会坐在树的阴凉下面但还种树时， 社会会变得更伟大。

A society grows great when old men plant trees whose shade they know they shall never sit in.

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