1. and the railway of the future may well be the 'hovertrain', riding on its air cushion over a single rail, which it never touches, at speeds up to 300 m.p.h.
   未来的火车或许能成为“气垫火车”，靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。
2. and the railway of the future may well be the ‘hovertrain’, riding on its air cushion over a single rail, which it never touches, at speeds up to 300 m.p.h.
   未来的火车或许能成为”气垫火车”，靠气垫在单轨上行驶而不接触轨道，时速可达每小时300英里。

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