Polyanion
聚阴离子
🗣️ 情景例句
Yes, they do.
是的 ，花儿好香。
To sum up, she is a nice girl.
总之，她是个可爱的女孩。
the chance of playing a game of football or baseball on Saturday afternoon.
让他们在星期六下午再踢足球或打垒球