Rhu
abbr. 放射性同位素熱源裝置（radioisotope heater unit）
??? 情景例句
You'll need to hurry up, or you'll miss the train.
你得快點，否則趕不上火車。
We can't write very well.
我們不能寫那么多。
And I'm glad to meet you, too.
我也很高興見到你。