Toroidal
[计] 环形的
🗣️ 情景例句
We tested it last week on twelve- to fifteen-year-olds,
我们上一周曾在十二岁至十五岁的孩子中试过这项游戏，
Good night.
晚安
Please give us a short talk. Nothing difficult!
请你给我们作一次简短的讲话。这对你并不困难！