18.1/9.5/9.8 ์ธ๋ฐ ํ๊ทธ๋ฆฝ, ํํด๋ก์ฉ ๋ง์ฐ์ค10๋ง์ ์๋๋ก ์ถ์ฒํด์ค๋งํ ๋ง์ฐ์ค ์์?
๋๊ธ 0