艾尔、蒂珀、希拉里和我相互了解，如果没有那些漫长的乘车时间，这样的了解是不可能达到的。
Al, Tipper, Hillary, and I had gotten to know one another in a way that would have been impossible without those long hours on the bus.
为了达到这个目的，他们让两组人在一系列的竞赛中相互竞争。
To do this they pitted the groups against each other in a series of competitions.
更大的目标则是设计出一个更好的方法让机器人们口头上相互交流——最终达到能和人类交流。
The larger aim is to devise a better means for robots to speak verbally with each other — and eventually with human beings.
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