catch one's breath

verb2

1. •
   to take a break, or rest while doing a strenuous activity, so that one's breathing becomes easier

   • They stood for a moment at the end of the set to catch their breath before resuming play.
2. •
   to take in a breath sharply and hold it, usually in reaction to a sudden shock, or surprise

   • John caught his breath when he saw the bottle rolling unstoppably towards the opposite edge of the table.