Hello,
The best way to translate the text from the blog page is to use the “Loco Translate” plugin, go to Loco Translate -> Themes -> select your theme -> select a language (The language should be the same as your WordPress, for example, if you have the default language in WordPress – English, then you need to create in the Loco Translate the same language) -> there click on the “Sync” button to synchronize all strings from the theme, and in the search field write “Continue reading”, “older” etc. and select it from below, create your translation and click “Save”
https://www.loom.com/share/29a661769e404a6aaeaef22a3e32e5bd
https://gyazo.com/9581fb1719ca22b74838181f86ed75df
Here is a video tutorial about Loco Translate:
https://www.youtube.com/watch?v=D3NsDdMzsls
Kind Regards