He said the fast-moving mission used some technology that had never been used in space before.

他说，快速移动的任务使用了一些以前从未在太空中使用过的技术。

Don’t put a space before the full stop; put one after.

不要在句号前加空格； 放一个在后面。

Also, it looks like you don't have a space before or after your dash, is that right?

另外， 看起来你的破折号前后没有空格，对吗？

Even knowing these risks, you'd also have to pass a space agency's astronaut test before going, which are physically and mentally rigorous.

即使已经知道了这些风险，你也必须通过航天局的宇航员测试，这个测试对身体和精神上的要求都很严格。

Like most final punctuation, you shouldn’t put a space before a question mark or an exclamation mark, but you do need a space afterwards.

像大多数最后的标点符号一样， 你不应该在问号或感叹号之前放一个空格，但后面确实需要一个空格。