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。
为什么要搞商业太空旅行？
Space travel is full of hazards.
他的一生是充满着冒险的一生。
太空旅行是胡言乱语。
Space travel used to be just a dream.
太空旅行过去仅仅是个幻想而已。
Space travel used to be just a dream.
太空旅行过去只是个梦想而已。
We have learned and mastered space travel.
这时地球人已经学会并掌握了太空飞行。
He made a video about his space travel.
他把他的太空之旅制成了电视片。
Space travel will make people feel excited.
太空旅行将会使人们感到兴奋。
Pioneer John Glenn was a pioneer in space travel.
约翰·格伦是太空飞行的先驱者。
Now he still tells me about his space travel.
现在他仍然给我讲述关于他的太空旅行。
I don't see anything wrong with space travel.
我认为太空旅行没有什么不好。
Why does Tony know so much about space travel?
为什么托尼对太空旅行了解那么多？
The Russians were the pioneers of space travel.
俄国人是宇宙航行的先驱。
Are they sure that space travel will be very fast?
他们确定太空旅行会很快吗？ ？
The next stage of space travel is a space station.
宇宙飞行的下一步是建立航天站。
Many companies are pursuing commercialized space travel.
许多公司在追求把太空旅行商业化。
Are they sure about the fast speed of space travel?
他们确定太空旅行的高速度吗？ ？
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。
I can't help thinking that space travel is a waste of money.
我总认为太空旅行是浪费钱财。
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。
Though she is very young, she knows a lot about space travel.
尽管她很年轻，（但是）她知道很多关于太空旅行的事情。
Under water travel and space travel have many things in common.
水下旅行和太空旅行有很多相同之处。
The professor's words sparked Patrick's interest in space travel.
教授的一席话激起了帕特里克对太空旅行的兴趣。
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。
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。
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