Rayl
n. [物]瑞利(比声阻抗的单位)
🗣️ 情景例句
I want to take a few days off just for relaxation.
我想请几天假放松放松。
A little fire is quickly trodden out.
小洞易补。
There were English cars, French cares, German cars.Italian cars.American cars and Japanese cars.
有英国、法国、德国、意大利和日本的汽车。