Rhu
abbr. 放射性同位素热源装置（radioisotope heater unit）
🗣️ 情景例句
I expect that I will be back on Sunday.
我预计星期日回来。
The shoes are worn-out.
这鞋已经不能穿了。
Would you like to see the factory, I'd like to show you around.
你想参观一下工厂吗？我可以领你四处看看。