前人栽树，后人乘凉。英文怎么说啊

One generation plants the trees in whose shade another generation rests.
One sows and another reaps.
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One generation plants the trees in whose shade another generation rests.
One sows and another reaps.

One generation plants the trees in whose shade another generation rests.
One sows and another reaps.

One generationplants the trees in whose shade another generation rests.

The people of the past plant a tree, the posterity enjoys cool air。