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Definitions4 characters
jiu3 jing1 kao3 yan4
well tested over a long period of time (idiom)/seasoned
Usage•••frequent
Pronunciations

As word

1
jiu3
well tested over a long period of time (idiom)/seasoned
2
jing1
well tested over a long period of time (idiom)/seasoned
3
kao3
well tested over a long period of time (idiom)/seasoned
4
yan4
well tested over a long period of time (idiom)/seasoned