什么是单轨火车?
单轨火车是交通繁忙地区所使用的另一种火车,它在街道上空的高架铁轨上行使,迅速地将人们运送进城来或送出城去。
The monorail is another kind of train used in busy places. The train hangs from a rail high above the streets and it carries people quickly in and out of the city.
我们乘的火车不时驶进单轨边上的支线,让其他列车通过。
We kept pulling into sidings next to the single track to allow other trains to pass.
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