Semioscillation
半(周期)振荡
🗣️ 情景例句
He needs to work.
他需要工作。
Where can I find a cheap coffee perk for my dorm room?
哪儿可以找到在我宿舍使用的廉价滤式咖啡壶呢？
I'll wait until I hear from you.
那么我就等你消息，