어 바꾸다

change, swap, switch

바꾸다 means changing one thing for another — a direction, a language, a habit. These lines do not show a single construction, though: half are the bare shouted command 바꿔 바꿔 바꿔, and where something does precede it, that something is a set phrase in its own right (안전을 위해 바꾸는게 좋아요 'better to change it for safety', 기대에 따라 바꾸고 'change according to what's expected', 진심을 담아 바꿔주세요 'change it with real feeling').

The examples below did not fully pin this one down — read them before relying on the entry above.