At Kuroda Primary School we assemble at a prearranged time and go to school as a group

The other day I attended a class reunion of my elementary school

Since primary school we've been checking for the qualities known as acidity and alkalinity with litmus paper

He is not so much a professor as a school teacher

I saw one, a mermaid, when I was a primary schooler. But it wasn't that sort of fairy-tale atmosphere of a story