Arcking
vbl.; arc的现在分词
🗣️ 情景例句
Fine!
好！
Do you build sand castles when you go to the beach?
你去沙滩的时候，堆沙丘城堡了吗？
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。