By default the blog page will show the full content of a post, but you can truncate this on the blog page using the regular WordPress “read more” feature which inserts a break in the content so the theme knows only to show that content before the break on the main blog page. This is a great way to give visitors to the main blog page a taste of your content without creating lots of duplication with the actual post itself.
If you are reading this on the main blog page you will see a link below this sentence which says “continue reading”…
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