jpdb beta

medium; average; moderation; middle school; China; volume two (of three); during (a certain time when one did or is doing something)

① 空の高い層。② 層が幾つも重なり高くなっていること。

middle and high school; medium and high (level)

① 重なり。② 年齢・地位・意識・能力などで区分した集団。