名词
中文翻译：卧铺火车票
同义词：
['sleeper train ticket', 'sleeper train fare']
例句：
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1. We need tobook our tickets in advance for the long-distance bus trip.
我们需要提前预订长途巴士旅行的车票。
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2. The sleeping car was very comfortable and I slept well during the night.
卧铺车厢非常舒适，我晚上睡得非常好。
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3.The sleeping car ticket is only $50, which is a good deal.
卧铺火车票只要50美元，这很划算。