By simply reducing the unit of measurement that you were using, you came up with an answer that was a hundred kilometers longer.

通过简单地减少你使用的测量单位，你得到的答案却长了 100 公里。

What if we put tethers, hundreds or thousands of kilometers long — into space, and had spacecraft use them as ladders to climb to higher altitudes and gain speed?

假如我们将数百至数千公里长的系绳放入太空，航天器是否能顺着它达到更高的高度并获得速度？

Few of us can travel far from home or live long over one hundred, but all of us can live many lives through the pages of books.

我们当中很少有人能到离家很远的地方旅游，或能活过一百岁，但是通过读书我们能经历各种各样的生活。

When the tree at last dies, the young glossy sprouts appear from nowhere, exulting in the sun and air for which they may have waited a long hundred years.

当这棵树最终死去时，光滑的嫩芽不知从哪里冒出来，在它们可能已经等待了数百年的阳光和空气中欣喜若狂。

Few of us can travel far from home a lot or live long over one hundred, but all of us can live many lives through the pages of books.

我们中很少有人能经常远离家乡旅行或活到百岁以上，但我们所有人都可以通过书本度过许多人生。