2. Cold noodles, also known as cold noodles, also known as "over the water", was called "cold scouring" in ancient times. It originated from the Tang Dynasty and refers to cold noodles. The main ingredients are noodles and vegetables, and the ingredients are Chili oil, salt, monosodium glutamate, etc. However, the practices of cold noodles in different places are different, so the practices and ingredients are also different.

3. There are cold noodles in many parts of the world, which are popular in summer and have a poor appetite every day.