Adrienne Penner wrote a series of guides to learning languages in the 1970s that were as hip as her author photograph on the back cover.
2026-02-17 1213词 困难
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When I made plans to visit friends in Berlin last fall, I aimed to learn a little German — enough to read signs, order a drink, maybe check out a dating profile. I downloaded the ubiquitous Duolingo; other American friends loved it.
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