They say it could be reached by an unmanned spaceship before the end of the century in time for people alive today to see it.

他们说，在本世纪末之前，无人驾驶的宇宙飞船就能到达那里，让今天活着的人们及时看到它。

youdao

And it won't be long before we see abort tests being conducted, followed by unmanned demonstration launches of vehicles designed for the commercial crew mission.

不久，我们就会看到各种逃生试验的进行，随后便是演示发射为商业载人任务设计的无人运载火箭。

youdao

"We do see bits of our DNA all over in today's underwater vehicles, both manned and unmanned, because the things that we developed.

VOA: standard.2010.06.21

The more likely scenario is that one day soon we will face an enemy far more capable than the Taliban, and when that day comes we will see all too clearly the limitations of unmanned aircraft.

FORBES: The Revolution In Unmanned Aircraft Is Overrated

And today we see the lifesaving difference he made -- in the mine-resistant vehicles and the unmanned aircraft, the shorter medevac times in Afghanistan, in our determination to give our wounded warriors the world-class care they deserve.

WHITEHOUSE: Armed Services Farewell Tribute for Secretary Gates