Quadriad
n. 四个一组(或一套、一系列)
🗣️ 情景例句
OK. What time is it?
好啊。什么时候？
Yesterday was such a beautiful day we decided to go for a drive.
昨天是如此美好的一天，我们决定开车出去。
We can't agree with the alterations and amendments to the contract.
我们无法同意对合同工的变动和修改。