元となった辞書の項目
精通
verb
to be well versed (in), to have expertise, to be well acquainted (with)
意味（1）
to be well versed (in), to have expertise, to be well acquainted (with)
to be well versed (in), to have expertise, to be well acquainted (with)
to be well versed (in), to have expertise, to be well acquainted (with)
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