Quadrinomial
a. 四项式的\\nn. 四项式
🗣️ 情景例句
No, I don't.
不 ，我不识路。
Whom do you want to talk to?
你要和谁讲话？
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。