very large multi-line field with more than 500 text line

I need to create announcement list that should allow user to add long description content (around 500 text line).

I road the following information form "Software boundaries and limits for SharePoint 2013" msdn article:

"List row size is 8,000 bytes per row" and "Multiple Lines of Text 192 "

what is this mean? I can't create list item with multi-line field and fill this field with more than 192 line?

please advise