I modified my travel plans by staying an extra night in Rome.
我修改了我的旅行计划，决定在罗马多住一晚。
The cost of the holiday tour to Hawaii included six nights' stay at a hotel, but as an add-on, every extra night was available at a discount.
去夏威夷度假旅行的费用中包括六个晚上的旅馆住宿费，不过作为附加优惠，每多住一晚，其费用可以打折。
The cost of the holiday tour to Hawaii included six nights' stay at a hotel, but as an add-on, every extra night was available at a discount.
去夏威夷度假旅行的费用中包括六个晚上的旅馆住宿费，不过作为附加优惠，每多住一晚，其费用可以打折。
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