当距离是负数意味着什么?用英语怎么说啊?When the distance is negative means what 这么说不对吧?

问题描述:

当距离是负数意味着什么?用英语怎么说啊?
When the distance is negative means what
这么说不对吧?

What does it mean when the distance is a negative number?

不对 ,应该是 what does it mean when the distance is negative?