"And this," says Dr.Williams, "is good news for long-term space travel."
威廉姆斯博士说：“对于长期太空旅行来说，这是好消息。”
With the development of technology, space travel will be a common thing.
随着科技的发展，太空旅行将会是一件常见的事。
After weeks of space travel, Chang'e 5 successfully brought back rocks from the moon.
经过几周的太空旅行，嫦娥五号成功地从月球带回了岩石。
Space travel may soon be a reality, but how visitors get there is still a very open question.
太空旅行可能很快成为现实，但游客如何到达那里仍然是一个开放性问题。
Space travel can be so delightful but at the same time invisibly dangerous.
太空旅行是如此令人愉快，但同时又存在无形的危险。
If it is, then the moon will become a possible choice for space travel in the future.
如果是这样，那么月球将成为未来太空旅行的一个可能选择。
This makes commercial space travel a complex legal issue not just domestically, but abroad.
这使得商业太空旅行成为一个复杂的法律问题，在国内外皆是如此。
How Virgin Galactic, regulators and the public respond to this most recent tragedy will determine whether and how soon private space travel can transcend that playground.
维珍银河公司、监管机构和公众如何应对这起最近发生的悲剧，将决定私人太空旅行能否以及多久能超越这块天地。
为什么要搞商业太空旅行？
太空旅行是胡言乱语。
We have learned and mastered space travel.
这时地球人已经学会并掌握了太空飞行。
Pioneer John Glenn was a pioneer in space travel.
约翰·格伦是太空飞行的先驱者。
Many companies are pursuing commercialized space travel.
许多公司在追求把太空旅行商业化。
Their research in rocketry blazed the way for space travel.
他们在火箭方面的研究开辟了太空旅行的道路。
The FAA has oversight of space travel that does not involve NASA.
美国联邦航天局也拥有对太空旅行的监管权而且不涉及到美国航空航天局。
EVEN by the standards of space travel, it has been a long, strange trip.
既使按太空旅行的标准来看，这也是一次漫长而奇怪的旅行。
That was in 1865, at a time when people only dreamed about space travel.
当时是1865年，那是个人们只能在脑海里梦想太空旅游的年代。
Ion engines are incredibly efficient, which makes them well suited to deep space travel.
离子引擎是令人难以置信的高效率，所以非常合适深入的太空旅行。
Eg: Nonetheless, I am still in favor of space travel, for its merits far outweigh demerits.
尽管如此，我还是赞成太空探险，因为它的好处远远大于坏处。
One of the primary missions of NASA should have been to drive down the cost of space travel.
NASA的主要任务之一应当是降低空间旅行的成本。
They use this research to analyze and solve problems dealing with satellites and space travel.
他们利用他们的研究成果来分析和解决卫星和太空旅行方面的问题。
We hear so much about the environmental impacts of transportation. What about space travel?
肮脏的火箭——太空活动对环境有何影响？
To that end, he’s created some very cool space travel posters modeled on classic travel agency art.
为此他创作了一些非常酷的太空旅行海报，这些海报都是把旅行社的宣传画作为模板绘制的。
We look up at the stars and can't help but think of space travel, or Spanish explorers, or Abraham.
我们抬头仰望星空，有了游历太空的想法，想起了西班牙航海家，或亚伯拉罕·林肯。
We look up at the stars and can't help but think of space travel, or Spanish explorers, or Abraham.
我们抬头仰望星空，有了游历太空的想法，想起了西班牙航海家，或亚伯拉罕·林肯。
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