Dictionary/久经考验

久经考验 久經考驗

jiǔ jīng kǎo yàn

ㄐㄧㄡˇ ㄐㄧㄥ ㄎㄠˇ ㄧㄢˋ
Phr
1well tested over a long period of time (idiom)
2seasoned

Characters

久经考验