Electropolymer
带电聚合物
🗣️ 情景例句
That's only part of it.
这只是一部分原因。
It is not the gay coat that makes the gentleman.
君子在德不在衣。
Modern machines can make the copy bigger or smaller, lighter or darker and copy onto both sides of the paper.
代机器可以放大、缩小、制作较亮的或较暗的复印件，也可以在纸的两面复印。