Experts believe it will likely take many years before the technology and equipment are developed to send humans to this unexplored area of space.

专家们认为，将人类送到这个尚未探索的太空区域所需的技术和设备，可能需要很多年的时间才能研发出来。

Mr. Mendelson adds that the next generation of Mod-Snake may be used to save lives or explore unexplored areas on Earth or even in space.

乔·门德尔松是乔治亚动物园的研究负责人，他说机器人模型能帮助解释为何这类蛇无法攀爬。

In 1773, Boone decided that he and his friends would go to an unexplored or mostly unexplored area west of the colonies, an area which we now call Kentucky.

1773 年，布恩决定他和他的朋友们将前往殖民地西部一个未开发或大部分未开发的地区， 也就是我们现在称为肯塔基州的地区。

A " frontier" is an unexplored area, a part of the world, or in this case a part of the universe that we do not know anything about.

“边界” 是一个未探索的区域， 世界的一部分，或者在这种情况下是我们一无所知的宇宙的一部分。