大多数人没有发现，在列车行驶的前10几英里，车的发动机是插在安装在铁路线的太阳能源头上。
Most were unaware that for the first dozen miles or so, the train's engines were plugged into the solar energy source fitted along the line.
大多数人没有发现，在列车行驶的前10几英里，车的发动机是插在安装在铁路线的太阳能源头上。
Most were unaware that for the first dozen miles or so, the train's engines were plugged into the solar energy source fitted along the line.
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