Polyanion
聚阴离子
🗣️ 情景例句
I'd love to, but I have to be up early tomorrow.
我非常感谢，可是明天我得早起。
They won't listen, so don't waste your breath telling them.
他们听不进去，不必和他们多费口舌了。
who put his questions to nature instead of to the ancients,
他向自然界而不是向古人提出问题，