Trinomial
a. 三项式的\\nn. 三项式
🗣️ 情景例句
Our products are of good quality and at a reasonable wholesale price.
我们的产品质量好，而且批发价很合理。
When the light went out, I was cleaning the yard.
当熄灯的时候，我在清理庭院。
I'm sorry, I can't. Is it under the teacher's desk?
对不起，我没见过，是不是在老师的讲桌底下？