Perparaldehyde
[化] 过仲醛
🗣️ 情景例句
How can I thank all of you?
我该如何感谢你们呢？
We had expected much lower prices.
我们希望报价再低一些。
Experiments have proved that children can be instructed in swimming at a very early age.
实验证明，儿童在很小的时候就可以开始学习游泳。