Children, can you stop what you're doing and listen to me for a moment? ... Thank you.
원문출처 : https://www.cnn.com/2018/05/15/health/smart-phone-go-ask-your-dad/index.html
원문출처 : https://www.cnn.com/2018/05/15/health/smart-phone-go-ask-your-dad/index.html