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.