| 例句 |
Humanity has made great progress in space exploration and medicine.人类在太空研究和医学上取得了很大进展。The NASA of the U.S. has the best rocketeers in the world.美国的太空研究中心有全世界最好的火箭研究者。Some space launches will be commercialized to help pay for more space research.一些太空发射将会商业化，以帮助支付更多太空研究的费用。The Russians were now ahead of them in space research.俄罗斯人目前在太空研究方面领先于他们。 |