Cationoid
类阳离子
🗣️ 情景例句
When I was asked to speak in English.
刚才当被要求说英语的时候。
Wash a dog, comb a dog, Still a dog, remains a dog.
本性难移。
In that case, we'd like cash on receipt of invoice.
这样的话，您在收到帐单时请付现。