entries → 補習
TSUMUGU · B2 · 詞
補習 word · B2
補習 ＝ 補 ＋ 習
ㄅㄨˇ ㄒㄧˊ · bǔxí
verb — to take extra lessons, to attend cram school (outside regular class)

字源 FORM — what the parts do

補make up, supplement (補充)bǔ
習study, practise (學習)xí
補習，補充的補，學習的習。