什么情况容易出长龙

简介：It probably landed downward for about half an hour, but before it reached the bottom, Li Dao couldn't help but feel a little panicked. The pool didn't look big from the outside, but it was really deep. It lasted half an hour. According to this kind of landing, The speed is enough to cover a distance of tens of thousands of feet. Isn’t it about to reach the center of the earth?