Polychlorinated
[医]多氯化的
🗣️ 情景例句
Now may I please say hello?
现在我可以说声哈喽了吗？
What would you like to eat?
你想吃什么？
That's not allowed. Once you are in here, listen to your teacher.
那是不允许的。一旦进来了，你们要听老师的话。