How do we know that a black hole sits at the center of our galaxy?
我们怎么知道，在我们的星系中存在着一个黑洞？
As I'm not sure a black hole is exactly the right massage at this point in a relationship.
我不确定黑洞代表的意义是否合适我们现在的关系。
As I'm not sure a black hole is exactly the right massage at this point in a relationship.
我不确定黑洞代表的意义是否合适我们现在的关系。
应用推荐