Dipolymer
[化] 二元共聚物
🗣️ 情景例句
Hey, Xiao Li, are you doing anything this weekend?
嘿，小李，这个周末有没有什么事要做？
Teacher. He is teaching.
老师。正在教书。
It's cheaper, isn't it?
这更便宜些，是吗？