Polysoap
聚皂(高分子表面活性剂)
🗣️ 情景例句
Hi, I'm Mary.
嗨，你好，我叫玛丽。
I worked as an intern in that firm last summer.
去年夏天我在那家商行实习。
Good morning! What can I do for you?
早上好！您想买点什么？