"Three roses in one bite" is a linguistic metaphor, which is usually used to describe a population. Words can bring joy and beauty to people, just like opening your mouth is like giving three bright roses to people with your own hands. This metaphor comes from the beauty of eloquence, just like the beauty and fragrance of flowers, which can make people enjoy it infinitely.

"Three roses in one bite" can also be used to describe wonderful music and sounds. Sometimes, a song or a wonderful piece of music can make people feel happy, just like hearing three bright roses. Similarly, a human voice can have similar charm, such as a wonderful singer or a melodious reciter.