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1·But whatever doubts fans and critics may have had that U2 had gone mainstream, or had grown too confident, were erased with the release of 1991's Achtung Baby.

U2是否已成为主流乐队，它是否过于自信，无论歌迷或评论家的疑惑如何，1991年《阿什堂宝贝》的发行令一切疑虑烟消云散。

2·The city has a special resonance for U2 as the band relocated to what was then East Berlin in 1990 to record the Achtung Baby album, on the eve of German reunification.

在德国统一前夕的1990年，U2搬迁至东柏林，推出了一张专辑《阿克堂宝贝》（Achtung Baby），引起了这个国家的特殊共鸣。