Help you a great god, and saw the tutorial here say raspbian before replacing software sources even when the/etc/apt/sources list. D/raspi. List the deb and deb - inside the SRC into domestic archive.raspberrypi.org, but I find for a long time, only the USTC image source site has this thing on the west (I Linux sprout new one, language expression may not be good, please forgive me), so I wanted to ask if there is any other source of mirror sites have it, a great god can help you pack