🗣️ 情景例句
Will dinner be served on this train?
火车上供饭吗？
I'm glad you helped me.
我很高兴你能帮我的忙。
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。