解釦子

Simplified: 解扣子

jiěkòuzi ㄐㄧㄝˇ ㄎㄡˋ ˙ㄗ

    • to clear up a doubt
    • to settle a worry in someone's mind

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
undo a knot
Meaning
To clear up a doubt or settle a worry in someone's mind.

Sources