Rhu
abbr. 放射性同位素热源装置（radioisotope heater unit）
🗣️ 情景例句
You'll have to ask a whole lot nicer than that I'm afraid.
恐怕你应该要问得有礼貌一点吧。
Mother begins baking cookies two weeks before Christmas.
自圣诞节的两周以前，母亲就开始做小甜饼了。
Most of Debbie's school friends will be waiting for her on the English coast.
黛比的大部分同学将在英国海岸等候她。