費盡心思
simp费尽心思fai3 zeon6 sam1 si1fèi jìn xīn si
English
- to rack one's brains (idiom); to take great pains to think sth through
- to exhaust all mental efforts
粵語 — Cantonese
- 為咗一樣嘢付出全副心機，全部投入
Examples
佢費盡心思，幾經辛苦終於寫完本書。
He spent all his efforts and finally finished this book.
Sources: cc-cedict, rime-cantonese, words.hk