What does sweet water mean?

What does sweet water mean? "Britney Spears" refers to a kind of wine made from moscato grapes, which contains some bubbles. The alcohol content of Britney Spears water is not high, generally between 4.5 and 6.5 degrees. It smells rich in floral and fresh fruits, such as orange blossom, lime, peach and green apple. No bitter taste, sweet and sour. The sweet water brewed by Italian moscato Asti and German Riesling is of excellent quality. In most "little sweet water" on the Internet, each 1 cup, such as 150ml, contains about 2 1-70/-70kcal, and 70kcal is almost half a bowl of rice, so "little sweet water" tastes sour and sweet, but it can't be greedy!