We employ friendly and knowledgeable staff.我们雇用好相处且博学的员工。

If you don't know much about cars, take a knowledgeable friend along.要是你对汽车了解不多的话, 就带上一个懂行的朋友一起去吧。

He's very knowledgeable.他是个知识渊博的人。

She's very knowledgeable about computers.她懂得许多关于电脑的知识。

He's very knowledgeable about wines.他对酒很有研究。