Face masks can be unexpectedly complicated, especially for those who are new to wearing them.
원문출처 : https://www.cnn.com/2020/04/24/health/face-masks-coronavirus-questions-wellness-trnd/index.html
원문출처 : https://www.cnn.com/2020/04/24/health/face-masks-coronavirus-questions-wellness-trnd/index.html