台Taivo A Taiwan Mandarin dictionary

了斷

liǎoduàn

ㄌㄧㄠˇ ㄉㄨㄢˋ

Simplified 了断

1to bring to a conclusion; to resolve (a dispute etc); to put an end to (once and for all); to break off (a relationship); to commit suicide; resolution (of a matter)

Keep 了斷 and it comes back until you know it.