진심을

sincerity

→ 진심
phrase Rare #16,828
sincerity 을 marks 진심 (sincerity or true feelings) as the object of a verb.
KO: 진심을 담아 편지를 썼어요.
EN: I wrote the letter with sincerity.

진심을 말해 봐

Tell me what you really think.

— 색, 계 (2007)