Doughnutting
(doughnut 的现在分词) n. 油炸圈饼, 环状物\\n[计] 圆环图
🗣️ 情景例句
That's a great idea, Grandpa!
这太好了， 爷爷。
You have to be there half an hour before departure time.
你要在起飞前半小时到那里。
It's next to the factory.
书店就在工厂隔壁。