有一些牌子，尤其是那些在几层纸中间加软垫和空气垫的牌子，对环境的破坏是特别之大。

Those brands, which put quilting and pockets of air between several layers of paper, are especially damaging to the environment.

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在空气中上升后，它在一幢几层楼高的建筑物的窗前停止升高，进入盘旋状态。

After rising through the air it stops to hover outside the window of a building several storeys high.

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尽可能的走楼梯：如果你在另外的楼层开会，提前几层下电梯爬上去吧，当然，最好的方式当然是不要使用电梯。

Take the stairs whenever you can. If you have a meeting on another floor, get off the elevator a few floors early and use the stairs. Better yet, skip the elevator entirely.

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