Metaldehyde
n. [化]聚乙醛, 四聚乙醛
🗣️ 情景例句
Can we talk?
能一块儿谈谈吗？
I took out my pen.
我拿出了我的笔。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。