高中毕业用英语怎么说?

"Graduate from high school" 是高中毕业的英文表达。

来源：graduate 是毕业的意思，而 high school 是高中的意思。

例句：

I graduated from high school in 2018. (我在 2018 年高中毕业。)
She will graduate from high school next year. (她明年将高中毕业。)

高中毕业也可以用"complete high school" 或 "finish high school" 来表达

例句：

He completed high school in 2016. (他在2016年高中毕业)
She will finish high school next year. (她明年将高中毕业。)