知识广，见闻多to have extensive knowledge and experience

• 每个时代都不乏博物洽闻的才学之士。

  In every age, there is no shortage of greatly learned scholars.

• 他博物洽闻，所以在面试的时候左右逢源，把面试官乐得不得了。

  He’s knowledgeable and experienced, and in the interview, everything he said and did made the interviewer extremely satisfied.