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
This situation permits no delay.
在这种情况下，不允许有任何拖延。
The days are getting longer.
白天越来越长了。
Everybody admires him for his great sense of humour --
人人都钦佩他那绝妙的幽默感 -- 人人，