Polysulfonate
多磺酸盐
🗣️ 情景例句
He was my roommate in college.
他是我大学时的室友。
It's just what I had in mind.
这正是我想要的。
They had rough weather, and Kunta's back bled from rolling over on the hard wooden boards.
他们经历了恶劣的天气，孔塔的背部由于在硬木板上滚动而流了血。