在芝加哥登上西风号快车前往旧金山前，我们有几个小时的空余时间，所以我们就赶到芝加哥艺术学院去看由建筑大师伦佐·皮亚诺设计的新楼。
We had a layover of several hours in Chicago before boarding the Zephyr for San Francisco, so we dashed over to the Art Institute to see the excellent new Renzo Piano wing.
莫勒在博客中写道：“三年前我们开始启动这个疯狂的计划，让全世界数以百万计的电脑用户在空余时间将纸质书数字化。”
It's been over 3 years since we started working on the crazy idea of getting millions of people to digitize the world's books in their spare time.
生命是短暂的，空余时间很少，因此我们不应把一刻空余时间耗费在阅读价值不大的书籍上。
Life is short, spare time very few, so we should not take a moment to spare time spent in reading books of little value.
魔里沙：别担心，我们在空余时间还会来玩的！
Marisa: Don't worry, we will come and play again during our free time!
我们的空余时间在增加，但其速度跟不上我们心中日益增多的必须做的事。
Our free time is increasing, but not as fast as our sense of the necessary.
我们的空余时间在增加，但其速度跟不上我们心中日益增多的必须做的事。
Our free time is increasing, but not as fast as our sense of the necessary.
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