s. easy and not involved or complicated
a. of or pertaining to or characteristic of elementary school or elementary education
s. of or being the essential or basic part
a. 初步的, 基本的
[医] 元素的, 基础的, 初级的
1. The teacher explained the elementary concepts of math to the students.
老师向学生们讲解了数学的基础概念。
2. Learning to read is an elementary skill for young children.
学习阅读是小孩的基本技能。
3. They started with elementary English before moving on to advanced topics.
他们先学习了基础英语，然后再学习高级内容。