1. The North American view is vast, with large Spaces of unpopulated land. 美国的观念是宏大的，与无人寓居的大片土地空间。
2. The North American landscape is vast, with large Spaces of unpopulated territory. 北美景观是巨大的，大空间的美洲的领土。
3. Musk noted that if a return to launch site recovery is made, it would be done over an unpopulated area. 穆斯克指出，如果到发射点的回收被决定了，它将做了一个无人区。
4. If the average lifetime for a civilization is short, the galaxy is likely to be unpopulated most of the time. 如果一个文明的平均寿命很短，银河系很可能在大部分时间里是无人居住的。
5. Deep in the vast and mostly unpopulated Gobi Desert, China's launch base is quietly awaiting the country's first-ever manned space flight. 在辽阔无际人烟稀少的戈壁滩上，中国发射基地正默默等待着首次载人航天飞行时间的到来。
