“我记得当时试着把自己的想法推向这个城市，他们回答说，‘你知道的，我们种四棵树的成本只需建造一个绿色屋顶的十分之一，’”她说。

“I remember trying to make my case to the city, and they said, ‘You know, if we just planted four trees, it would cost us a tenth the cost of a green roof, ’” she says.

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他的回答是得当的。

His answer was apposite.

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