Then simply lash the cot to four trees a few feet off the ground.

然后把吊床捆绑在四棵树上，离地面几英尺高。

youdao

If you can't find four trees in close enough proximity, use a single forked tree at one end to form a "y" -shaped base.

如果你在附近找不到四棵树，那么就用单独一个分叉树的一端作为“Y”型分叉的地步。

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“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.

“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。

youdao

It can grow up to four meters tall. With about one and one-half meters of rainfall each year, plants and trees never stop growing in the Everglades.

VOA: special.2009.06.30

City officials said the owners had permits to remove four trees, including a redwood.

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Fifty-four trees that reflect the theme including four trees in the grand foyer, which is the area out here.

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