eighth

释义

num. 第八, 八分之一

例句

Until then, students could leave after the eighth grade, and a lot of them did.

那时，学生上完八年级就可以辍学，许多学生的确这样做了。

Then, in eighth or ninth grade, I studied astronomy, cosmology, and the origins of the universe.

后来，在八、九年级的时候，我在学习天文学，宇宙学和宇宙的起源。