Twenty pages, that's not, is that double space or single space?

20页，你是用两倍行距还是单倍行距？

Scott Kelly had the longest single space flight, but Peggy Whitson has logged the most total time in space.

斯科特·凯利有最久的单人太空游，但是佩吉·惠斯顿在太空中逗留了最长时间。

Ukraine's railway services say they are evacuating 5,000 people a day from Kyiv, and every single space is precious.

乌克兰铁路公司表示，他们每天从基辅撤离5000人，车上每寸空间都很宝贵。

At 12: 05 AM early Tuesday, Scott will break the American record for NASA's longest single space shot.

05分，斯科特将打破太空记录。

Astronaut Samantha Cristoforetti holds the record for the longest single space flight by a woman at 199 days on the ISS.

有 200 多名访客在甲板上 平均逗留了 6 个月太空人莎曼珊．克里斯托福雷蒂。

For example, he must walk in sinle file, write in a single space, and sleep on single bed.

比如，他必须单列走，单行书写，睡单人床。

Right now, they're putting the Vice President and his team out of sight, in a single, small space.

现在 他们正在把副总统和他的人带离公众视线 藏到一个隔离的小空间内。

Formerly there was a single space between the return address and the date, but some current styles allow double spaces.

以前，回信地址和日期之间只有一个空格，但当前的一些样式允许使用双空格。

It's again, because of the way these parks are designed with their single large open space and multiple football cages, boys feel welcomed, girls feel they need to compete for space.

又是因为这些公园的设计方式有一个大的开放空间和多个足球笼，男孩们感到很受欢迎，女孩们觉得他们需要争夺空间。

No single space project in this period will be more impressive to mankind, or more important for the long-range exploration of space, and none will be so difficult, or expensive to accomplish.

这一时期没有任何一项太空计划会比人类更令人印象深刻，或者对太空的远程探索更重要， 而且完成起来也不会如此困难或昂贵。

We thus have still in physics, as we had in Newton's time, a set of indestructible entities which may be called particles, moving relatively to each other in a single space and a single time.

因此，在物理学中，就像在牛顿时代一样，我们仍然拥有一组坚不可摧的实体，这些实体可以称为粒子，它们在单一空间和单一时间中彼此相对运动。