Quadrinomial
a. 四项式的\\nn. 四项式
🗣️ 情景例句
There you go.
东西来了。
Are you through?
你有完没完啊？
The student did in an archway nearby where he could watch and hear everything that went on.
那个学生躲在附近一拱形的门廊里，在那儿可以看见、听到现场发生的一切。