an authority on english
英语权威
以上为机器翻译结果，长、整句建议使用 人工翻译 。
He's an authority on English.
他是英语界的权威。
youdao
Osler is known as an authority on sir thomas browne, seventeenth century english prose master .
奥斯罗是公认的研究十七世纪英国散文大师托马斯布朗爵士的权威。
"The apostrophe has a function, " says Thomas Gasque, an English professor who spent years on South Dakota's Geographic Names Authority.
WSJ: In U.S., Apostrophes in Place Names Are Practically Against the Law
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