Cationogen
[医] 阳离子发生物
🗣️ 情景例句
We should.
我们应该如此。
When the fruit is scarcest, its taste is sweetest.
物以稀为贵。
They were visited by a large colony of ants which obtained a sort of honey from them.
蚜虫遭到一窝蚂蚁的攻击，蚂蚁从它们身上可以获得一种蜜。