mug up

US /mʌɡ ʌp/
UK /mʌɡ ʌp/
"mug up" picture
1.

突击学习, 临时抱佛脚

to study a subject quickly, especially before an exam

:
I need to mug up on my history before the test tomorrow.
我需要在明天的考试前突击学习历史。
She spent the whole night mugging up for her finals.
她熬夜突击学习,为期末考试做准备。