讲解文本：

knowledgeable 知识渊博的，（对某行业）有见识的
We had a knowledgeable guide in our team.
我们队里有一位见识广博的导游。
If you don't know much about cars, take a knowledgeable friend along.
如果你不太了解汽车，带一个懂行的朋友一起去。

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