Why is it cold when it is windy?

As the saying goes, "cold is air-cooled, and poverty is debt-poor", especially in winter, it is cold without wind, and even colder with wind. Because the cold wind is more penetrating, it hurts to blow on the face; In other seasons, the wind is not like this. "Spring breeze blows willow, Xia Feng fire wind, autumn wind blows gently, and winter wind is biting." Only the winter wind is cold.