Polyarylsulfone
[化] 聚芳砜
🗣️ 情景例句
I guess you know what's best for the family and for me.
我猜想你们一定知道怎样做对整个家庭和我是最有利的。
Today is May 21st.
今天是五月二十一号。
There are some pictures in the room.
客厅里有几幅画。