第二天早上，我的三速档的自行车捆在车顶上，行李箱和我母亲的画架则塞在汽车尾箱里，我们离开了怀俄明。
The following morning, we left Wyoming with my three-speed bike strapped to the roof of the car and our suitcases and my mother's easel piled in the trunk.
那个时代的甲壳虫有硬顶式和敞篷式两种车身造型，不过动力系统却没得选，只有一款风冷后驱发动机，搭配三速手动变速箱。
Beetles of that era came in two body styles — hard-top and cabriolet — and with one powertrain option: air-cooled, rear-engine, three-speed manual transmission.
在城里还是骑三速自行车比较简单和可靠。
Three speed cycles are simple and reliable to ride around the town.
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