Polycation
聚阳离子
🗣️ 情景例句
I'm going to excuse myself.
很抱歉失陪。
Do you know where I've put my glasses?
你知道我把眼镜搁哪儿了吗？
You might get burnt and you might drop the pan of burning oil.
否则，你可能 被烧伤，也可能把起火的油锅扔掉。