Poly(vinyl butyral)
[化] 聚乙烯醇缩丁醛
🗣️ 情景例句
Would a professional photographer be without a picture?
一位专业摄影师会没有照片吗？
We are mutual friends.
我们彼此是朋友。
The eraser goes from one student to another first one way, then another.
橡皮擦从一个学生传给另一个学生－先从这个方向传过去，然后返回来。