Polyarylsulfone
[化] 聚芳砜
🗣️ 情景例句
Tech stocks are hot property.
科技股如今是抢手货。
I dress my sister and wash her hands and face.
我给我妹妹穿衣服，洗脸洗手。
My grammar is improving, but I find idioms and useful expressions hard to learn.
我的语法在进步，但我发现习语和有用表达很难学。