Meaning of bù jǐn:
bù jǐn
不仅
Conjunction
not just; not limited to; (as a correlative conjunction) not only (..., but also ...)
Tā bù jǐn cōngmíng, érqiě hěn nǔlì.
他不仅聪明,而且很努力。
He is not just smart, but also very hardworking.
Zhè běn shū bù jǐn yǒuqù, érqiě hěn yǒu jiàoyù yìyì.
这本书不仅有趣,而且很有教育意义。
This book is not only interesting, but also very educational.