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detailed; full; minute
knowing very well; knowledgeable (about); well-acquainted (with); well-informed (about); familiar (with)
彼は歴史にとても精しい人だ。
He is very knowledgeable about history.
祖父は地元の歴史にとても精しかった。
My grandfather was very knowledgeable about local history.
私はワインにはあまり精しくない。
I'm not very knowledgeable about wine.