Cations
n. 阳离子；正离子（cation的复数）
🗣️ 情景例句
We're on the fifth floor.
我们在五楼。
At your request, we are offering you the following items. This offer will remain open within 3 days.
应你方要求，我方就如下产品报价，此报价3日内有效。
Did he telephone again?
他又打了没有？