Mesoxyalyurea
四氧嘧啶
🗣️ 情景例句
Philip had to go back to the hospital. Philip
必须要回医院。
Have you been busy with schoolwork?
学校的功课很忙吗？
Computers are becoming a part of our everyday life.
电子计算机正渐渐成为我们日常生活的一部分。