https://blog.gongquiz.com/2021/09/13/%ec%95%84%ec%9d%b4%ec%96%b8-vs-%eb%93%9c%eb%9d%bc%ec%9d%b4%eb%b2%84-%eb%aa%85%ed%92%88%ec%8a%a4%ec%9c%99-%ec%97%90%ec%9d%b4%eb%af%b8-%ec%a1%b0-%e3%81%82/