Counterion
带相反电荷的离子.抗衡离子, 补偿离子
🗣️ 情景例句
and you won't get so many colds anymore.
你就不会老患感冒了。
Palm Springs. I've got a cousin there.
棕榈泉，我有个表兄在那儿。
Well, this is our latest catalog.
嗯，这是我们的最新的目录。