Midfrequency
中频
🗣️ 情景例句
I work part time at the gasstation.
我在加油站做兼职工作。
I was born and raised here.
我生于斯，长于斯。
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。