煞費苦心
simp煞费苦心saat3 fai3 fu2 sam1shà fèi kǔ xīn
English
- to take a lot of trouble (idiom); painstaking
- at the cost of a lot of effort
- to rack one's brains; to spend much time and effort
粵語 — Cantonese
- 非常耗費心神
Examples
佢煞費苦心諗咗好耐先諗到解決辦法。
She has spent much time and effort to come up with a solution.
Sources: cc-cedict, rime-cantonese, words.hk