Dichlorofluoromethane
[机] 二氯氟甲烷
🗣️ 情景例句
Coming! Coming!
来了， 来了。
In secondary school, children get more advanced knowledge.
在中学，孩子们得到更高深的知识。
When there is no one in the office, you can leave the answering machine on so that people who call you up can leave a message.
当无人在办公室时，你可以打开留言机，这样打电话给你的人就可以留言了。