☆ ADVANCED LEVEL : 0 ☆☆ INTERMEDIATE LEVEL : 0 ☆☆☆ ELEMENTARY LEVEL : 0 NONE : 1 ALL : 1

• 반사 작용 (反射作用) : 빛이나 전파 등이 다른 물체의 표면에 부딪혀서 나아가던 방향이 반대 방향으로 바뀌는 것. None
🌏 REFLEX: A phenomenon in which light, radio wave, etc., changes direction when it hits an object in its path.

• Climate (53) • Describing physical features (97) • Describing food (78) • Greeting (17) • Expressing emotion/feelings (41) • Health (155) • Law (42) • Geological information (138) • Expressing gratitude (8) • Residential area (159) • The arts (76) • Expressing time (82) • Social system (81) • Weekends and holidays (47) • Using public institutions (library) (6) • Comparing cultures (78) • Using public institutions (59) • Describing events, accidents, disasters (43) • Using transportation (124) • Education (151) • Architecture (43) • School life (208) • Using a pharmacy (10) • Apologizing (7) • Mass media (47) • Human relationships (52) • Describing location (70) • Appearance (121) • Daily life (11) • Press (36)