毫无疑问，太空飞行是有风险的，而开创一种新的旅行方式就是要面对这些风险，并利用来之不易的经验来减少这些风险。
There is no doubt that spaceflight entails risks, and to pioneer a new mode of travel is to face those risks, and to reduce them with the benefit of hard-won experience.
幸运的是，他们有一辆大篷车，一种为人们旅行时居住而设计的汽车。
Luckily, they owned a caravan, a kind of car designed for people to live in while travelling.
所以我有一种向自己和家人来证明我还行的冲动，向其它像我一样年纪的老人表明单独旅行还是有可能的，而且是一种恢复生机的有用经历。
So an attempt to prove to myself and to my family that I can hack it? And to others of my age that solo travel remains possible and an enlivening experience.
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