Polyanhydrides
[化] 聚酐类
🗣️ 情景例句
Wow, dad is cooking, this must be a special occasion.
哇， 爸爸在做饭， 这肯定是一个特别的场合。
Are you Bill Jones?
你是比尔、琼斯吗？
Last year, however, it came into use.
然而去年机场开始使用了。