supplementary
🇺🇸
/ˌsʌplɪˈmentri/
🇬🇧
/ˌsʌplɪˈmentri/
adjective
R
extra, added to make something better or complete
The teacher gave us supplementary materials to help us understand the lesson better.
老師給了我們補充材料，幫助我們更好地理解課程。
translation
補充的