⓵ ÁÖÁ¦¹® -> There are several factors that encourage students to study harder.
⓶ µÞ¹Þħ ¹®Àå 1 -> First of all, competing for grades can give students more motivation to learn.
⓷ µÞ¹Þħ ¹®Àå 2 -> In addition, grades enable students to measure themselves.
⓸ ¸¶¹«¸® ¹®Àå -> In summary, it is true that grades can encourage students to learn more in their courses.