Well Tom, I hope you have a good time in America. I'll miss you.
就这样了,汤姆。我希望你在美国玩得很愉快。我会想你的。
It was the idea of supporting a craft on a 'pad',or cushion, of low-pressure air, ringed with a curtain of higher pressure air.
用一个气垫来支撑船体,低压空或软垫,软垫周围用高压空气环绕。