Upconverter
升频器; 上转换器
🗣️ 情景例句
We've called it quits.
我们决定放弃（我们之间的关系了）。
If you run after two heares, you will catch neither.
两头落空。
Which language is spoken by the largest number of people in the world?
世界上哪种语言说的人最多？