Polyarylsulfone
[化] 聚芳砜
🗣️ 情景例句
Do you want to play?
你们想玩吗
Learn to say before you sing.
按部就班。
Putting my hand on her face, she spelled l-a-u-g-h.
她将我的手在她的面部，就拼写l-a-u-g-h。