swot up on
US /swɑt ʌp ɑn/
UK /swɒt ʌp ɒn/
片語動詞
惡補, 刻苦學習
to study something very hard, especially for an examination
範例:
•
I need to swot up on my history before the test.
考試前我需要惡補歷史。
•
She spent the whole weekend swotting up on biology.
她整個週末都在惡補生物學。