試金石
simp试金石si3 gam1 sek6shì jīn shí
English
- touchstone
- fig. test that sth is genuine
- touchstone (both literally and figuratively)
粵語 — Cantonese
- 一嚿用嚟試驗金屬成色同純度嘅黑色礦石，引申指可靠嘅檢驗方法
Examples
呢場賽事有唔少靚馬參賽，係馬匹實力嘅試金石。
Competing in this race are some good horses. It is a touchstone for their strength.
Sources: cc-cedict, rime-cantonese, words.hk