这本书的内容博大精深，值得认真阅读。
zhè běn shū de nèiróng bódàjīngshēn ， zhíde rènzhēn yuèdú 。
The content of this book is broad and profound, worthy of careful reading.
他的知识博大精深，令人钦佩。
tāde zhīshí bódàjīngshēn ， lìngrén qīnpèi 。
His knowledge is wide-ranging and profound, making him admirable.
这门课程非常博大精深，涵盖了许多领域。
zhè mén kèchéng fēicháng bódàjīngshēn ， hán gàile xǔduō lǐngyù 。
This course is very broad and profound, covering many fields.