Bipolymer
二(元共)聚物
🗣️ 情景例句
She's an easy-going teacher.
她是位随和的老师。
Have you ever thought about becoming a professional musician?
你曾经想过要成为职业音乐家吗？
I often go-swimming, sometimes in a lake near my home, and sometimes in the river.
我经常去游泳，有时在我家附近的湖里，有时在河里。