Take a breath or drink a mouthful of water in Cantonese. Thank you, kind people.

In Cantonese, the common expression is "a mouthful of air" or "a mouthful of water", which means "a breath" or "a mouthful of water". Among them, "spit" means "mouth", which means eating or drinking with your mouth. So "one breath" or "one breath of water" means one breath or one mouthful of water. I hope this answer can help you!