Polysorb
有机聚合物担体
🗣️ 情景例句
Growing up without a mother is difficult.
在没有母亲的情况下长大不简单。
Did you send it to him yourself?
你自己亲自送给他吗？
Sorry, but could you kindly repeat what you just said?
抱歉，你可以重复刚刚所说的吗？