supplementary

US /ˌsʌp.ləˈmen.t̬ɚ.i/
UK /ˌsʌp.ləˈmen.t̬ɚ.i/
"supplementary" picture
1.

补充的, 附加的

completing or enhancing something

:
The teacher provided supplementary materials for the students.
老师为学生提供了补充材料。
These notes are supplementary to the main lecture.
这些笔记是主要讲座的补充