Polyoxyacid
多缩含氧酸
🗣️ 情景例句
It's nice to see young love.... Oh, to be young again!
真高兴看见年轻人相爱……。啊 能再恢复年轻多好
Good to begin well, better to end well.
善始好，善终更好。
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。