U-bahn (n.)是什么意思，U-bahn (n.)的翻译，U-bahn (n.)音标、读音、用法和例句

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U-bahn (n.)是什么意思，U-bahn (n.)的翻译，U-bahn (n.)音标、读音、用法和例句_奇葩剧汉英词典