罗伯特独自一人经过了他周游世界的绝大多数行程，他所担心的是他的摩托车。
Robert Fulton was alone for most of the trip. He worried about his motorcycle.
要是我将来有了足够的钱，我就会独自一人乘船周游世界。
Should I have enough money, I should sail around the world singlehanded .
要是我将来有了足够的钱，我就会独自一人乘船周游世界。 。
Should dI have enough money, I should sail around the world singlehanded.
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