Cationoid
类阳离子
🗣️ 情景例句
I don't know haw that could have happened.
我不知道怎么会发生那样的事。
Maybe we could start with the Designing Department.
也许我们可以先参观一下设计部门。
Has he had anything to eat this morning?
他今早吃了什么东西吗？