搭配 “cram for something” 的意思是 “在短时间内学习大量知识，突击复习”，多用来形容为了应付考试，临阵抱佛脚的做法。动词 “cram” 的本意是 “填满、塞进”，这里，它比喻 “快速地往脑子里塞入很多内容、死记硬背”。

• Susan can’t come out with us tonight because she needs to cram for the maths test tomorrow morning. She hasn’t even started yet!
  苏珊今晚来不了了，因为她得为明天早上的数学测验临阵磨枪。她还没开始复习呢！
• Why do you always leave studying until the last minute, Joe? You hate cramming! It stresses you out and then you do badly. You never learn, do you?
  你为什么总是到最后关头才开始学习呢，乔？你又特别不擅长临时抱佛脚！弄得精神紧张，结果成绩一塌糊涂。但你就是不长记性，是不是？
• I need to start preparing for exams weeks in advance to do well, but my brother has always been able to cram and get a great mark! It’s so annoying!
  为了能考出好成绩，我提前好久就开始复习备考，但我弟弟总是能靠临时抱佛脚，拿高分！真气人！