Many of us have heard: "Don't go outside without a coat; you'll catch a cold."
원문출처 : https://www.cnn.com/2021/01/04/health/winter-weather-cold-flu-season-wellness-partner/index.html
원문출처 : https://www.cnn.com/2021/01/04/health/winter-weather-cold-flu-season-wellness-partner/index.html