这所学校为处于初级水平的学生提供课程。

The school offers courses for students at an ___elementary level.

这本教科书非常适合对该学科有基础了解的学习者。

This textbook is perfect for learners with an ___elementary knowledge of the subject.

他对计算机编程只有基本的了解。

He has only an ___elementary understanding of computer programming.