这趟旅行是一个小镇的往返旅程，总共有4站，乘客可以在那里上下车。
The tour is a round-trip of the town and there are a total of 4 stops where passengers can get on and off the bus.
到我下车前共有多少站呢？
全球平均气温的汇总数据共有三种，每一种都是基于成千上万个温度计的读数来计算的，这些温度计分布在各个气候站中和轮船的夹板上，它们的读数可以追溯到150年前的气温。
There are three compilations of mean global temperatures, each one based on readings from thousands of thermometers, kept in weather stations and aboard ships, going back over 150 years.
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