Hly2004 zip means "fasten with a zip" my question is when to choose "zip" instead of "zip up" and when "zip up" is better than "zip"? Maybe you can provide a few examples? Zip up your jacket because it's really cold outside.
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Hly2004zip means "fasten with a zip"Maybe you can provide a few examples?
my question is when to choose "zip" instead of "zip up"
and when "zip up" is better than "zip"?