A snowflake is a small weather feature that can pack a big punch.
원문출처 : https://www.cnn.com/2020/12/23/weather/weather-science-behind-snowflakes-scn-trnd/index.html
원문출처 : https://www.cnn.com/2020/12/23/weather/weather-science-behind-snowflakes-scn-trnd/index.html