将Linux中的更新终端更改为US

Question

我每次都可以更改为US。我在Linux终端中更新

错误：

: Failed to fetch http://ph.nl.archive.ubuntu.com/ubuntu/dists/trusty/InRelease  
W: Failed to fetch http://ph.nl.archive.ubuntu.com/ubuntu/dists/trusty-updates/InRelease  
W: Failed to fetch http://ph.nl.archive.ubuntu.com/ubuntu/dists/trusty-backports/InRelease  
W: Failed to fetch http://ph.nl.archive.ubuntu.com/ubuntu/dists/trusty/Release.gpg  Could not resolve 'ph.nl.archive.ubuntu.com'
W: Failed to fetch http://ph.nl.archive.ubuntu.com/ubuntu/dists/trusty-updates/Release.gpg  Could not resolve 'ph.nl.archive.ubuntu.com'
W: Failed to fetch http://ph.nl.archive.ubuntu.com/ubuntu/dists/trusty-backports/Release.gpg  Could not resolve 'ph.nl.archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

Answer 1

$ sudo YOUR_FAVORITE_EDITOR /etc/apt/sources.list，并将域名更改为us.archive.ubuntu.com