knowledgeable
adjective (also knowledgable) uk/ˈnɒl.ɪ.dʒə.bəl/ us/ˈnɑː.lɪ.dʒə.bəl/
C1 知识渊博的;有见识的
knowing a lot
He's very knowledgeable about German literature. 他精通德国文学。
Synonym: be versed in something
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