Rfu
放射免疫聚焦装置（radiommunofocus unit）
🗣️ 情景例句
That's why I'm reading my paper and having my coffee
这就是今天早上为什么我看报纸喝咖啡
I've made a reservation at the hotel you used last time.
我已预订了你上次住过的旅馆。
The last order didn't work out too well for us.
上回订的货用起来不怎么顺。