Polyanion
聚阴离子
🗣️ 情景例句
God bless you.
上帝保佑你。
Many a flower is born to blush unseen.
有许多花儿生来就开著没有人欣赏。
During these tests she was able to read a newspaper through an opaque screen and,
在这些测试中，她能隔着不透明的屏幕读报纸。