一個丘減掉一粒沙子還是一個丘 ,650Please respect copyright.PENANAimmicryeqH
假如一直重複這清況的話(每次都減掉一粒沙子),到了最後會是一個丘等於一粒沙子嗎?ns216.73.216.10da2
After each update request, the author will receive a notification!
smartphone100 → Request update
216.73.216.10
ns216.73.216.10da2