Wrap each pair in spans and create them so that they don't break, for example.
HTML
<div class="paired-text"> <span>Nomal A1,</span> <span>High A2(4),</span> <span>Low A3</span> </div>
Css
.paired-text span{ white-space: nowrap; }
Alternatively, you can display an inextricable space ( ) between each pair of words that you want to glue. I prefer the first idea that I propose, but cleaner.
Nomal A1, High A2(4), Low A3
It's a little uglier, but it's less code.
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