Electropolymer
带电聚合物
🗣️ 情景例句
I am studying two majors, and it's quite a burden on my time.
我有两门主修课，这占据了我很大一部分时间。
What choice do I have?
我有什么选择吗？
Gandhi was thrown off a train and later a mail bus for insisting on travelling in the whites-only section.
旅行时，甘地因为坚持要坐白人座位，曾经先后两次被从一列火车与一辆邮车里扔出来。