Explanation of the riddle: A thousand mouths, that is, a thousand mouths, become tongue characters, and everyone tastes sour and sweet: the tongue can taste sweet and sour, and everyone has it, so the answer is the tongue.

He turned pale with fear and his tongue froze, unable to speak. Hearing everyone's praise, two clouds floated on his cheeks and a bright red tongue hovered around his mouth. He was flattered, and the dog hiding in the shade stuck out its tongue and gasped.

Everyone interprets and analyzes the ups and downs.

Everyone has a thousand mouths to taste sweet and sour, and the answer is words, because a thousand mouths synthesize tongue characters, and everyone has a spicy word to taste sweet and sour.

Because people often say that it is not easy to describe the five flavors in people's lives with the word "sweet and sour", so in this riddle, we say "it tastes sour and sweet" instead of "spicy", so the words tongue and spicy are combined into words, and the answer is the word.