[Android 問題] Time Out When Downloading Android Source Code

Why it appears "time out" when downloading Android source code from Google's git server? 

 

Getting repo ...
   from git://android.git.kernel.org/tools/repo.git
android.git.kernel.org[0: 130.239.17.12]: errno=Connection timed out
android.git.kernel.org[0: 149.20.20.141]: errno=Connection timed out
android.git.kernel.org[0: 199.6.1.176]: errno=Connection timed out
android.git.kernel.org[0: 204.152.191.45]: errno=Connection timed out
fatal: unable to connect a socket (Connection timed out)
 



It's simply because of the server's being busy.