Quaternity
n. 四个一组, 四人一组, 四位一体
🗣️ 情景例句
Well, I will leave you two to talk.
嗯 ，我走开，你们谈吧。
If you have no questions, may I go on to the next stage?
如果你们没有问题了，我可以进行下一阶段吗？
With practice, no doubt, I could in time learn to write by holding the pen still while the paper moved.
毫无疑问，经过练习，我最终能够学会笔不动而纸动来写字。