Yo-yo
大学 Collegen. 溜溜球
📖 牛津释义
Yo-Yo
n
(pl ~s) (propr 专利名) toy consisting of two thick discs of wood or plastic with a deep groove between, which can be made to rise and fall on an attached string when this is jerked with a finger 悠悠（玩具, 为木制或塑料制两厚圆盘, 中间有一深沟连接一绳, 用手指抻绳可使之沿绳上下移动）
The price of petrol is going up and down like a Yo-Yo. 汽油的价格像悠悠一样忽上忽下.
🧩 词语组成解析
int. 唷（表示鼓励, 警告）；嗨（表示应答）
int. 唷（表示鼓励, 警告）；嗨（表示应答）
🗣️ 情景例句
I'm pooped.
我精疲力尽。
Would you like me to take you around introduce you?
现在让我替你向大家作介绍好吗？
It was rather like an exhibition of prehistoric electronic equipment.
这儿倒像是在展览古老的电子设备。