英语词汇“be well up in something”的释义、用法及例句-英汉例句词典-鸿札记

词汇	be well up in something
例句	Idiom He's well up in all the latest developments. 他对所有的最新发展情况都了如指掌。
随便看	Orwellian or what or whatever or wherever -ory orzo os Os Os O's o's OS Osages Oscar Oscar™ oscillate oscillated oscillates oscillating oscillation osmosis osmotic osseous ossification ossified

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