Phagmesis
羽毛症
🗣️ 情景例句
What kind of salary did you have in mind?
你期待什么样的工资？
May I help you?
要我帮忙吗？
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。