Rfu
放射免疫聚焦装置（radiommunofocus unit）
🗣️ 情景例句
I care about the practical things.
我关心实用的事物。
How did you doing spend your holiday?
你假期怎么过的？
Many of them have to wait six months for their goods.
许多顾客不得不等上半年才得到所需的商品。