台Taivo A Taiwan Mandarin dictionary

破題

pòtí

ㄆㄛˋ ㄊㄧˊ

Simplified 破题

1(literary) to introduce the theme of a composition; to state the gist at the outset
2(fig.) to begin tackling an issue; to find a way into a problem
3(coll.) to experience sth for the first time (esp. sth unusual)

Keep 破題 and it comes back until you know it.