事实是指通过观察所了解的关于事情的真实情况。

A fact is something that you know to be true, on the basis of observation.

youdao

如果一氧化碳将真实情况掩盖住，那是件挺危险的事情。

If the carbon monoxide takes this away, it's kind of dangerous.

youdao

如果一氧化碳将真实情况掩盖住，那是件挺危险的事情。

If the carbon monoxide takes this away, it's kind of dangerous.

youdao