Meaning of jì:
jì
既
Adverb
already
Tā jì cōngmíng yòu qínfèn.
他既聪明又勤奋。
He is both smart and hardworking.
Conjunction
since; both... (and...)
Jìrán xià yǔ, zánmen jiù liú zài jiā lǐ ba.
既然下雨，咱们就留在家里吧。
Since it's raining, let's stay at home.
Tā jì cōngmíng yòu qínfèn.
她既聪明又勤奋。
She is both smart and hardworking.
