Next week the Royal National Theatre presents Michael Frayn's Copenhagen.下周皇家国家剧院将上演迈克尔·弗雷恩的《哥本哈根》。The time the boat had left Copenhagen was a known.这艘船离开哥本哈根的时间是已知事实。We're going on a bus tour today, to see the sights of Copenhagen.今天我们要坐车游览哥本哈根的风景名胜。