Quadriad
n. 四个一组(或一套、一系列)
🗣️ 情景例句
What are some of the other sports products you're making?
你们现在还生产哪些运动产品？
And good luck to this wonderful new branch.
我祝愿这家新分行好运。
when the plane suddenly turned round and flew back to the airport.
这时飞机突然调转头来，飞回了机场。