cram
/kræm/verb
1crammed, cramming
with obj.（常作be crammed）completely fill (a place or container) to the point that it appears to be overflowing把…塞满（或挤满, 装满）：the ashtray by the bed was crammed with cigarette butts
床边的烟灰缸里盛满了烟头
it's amazing how you've managed to cram everyone in.
令人惊奇的是你是怎么把所有人都塞进去的。
1.1
- no obj.(of a number of people) enter a place or space that is or seems to be too small to accommodate all of them（人）拥挤：
they all crammed into the car.
他们全都挤进了汽车里。
1.2
- put (something) quickly or roughly into something which is or appears to be too small to contain it把…塞入：
he crammed the sandwiches into his mouth
他把三明治全塞进了嘴里
figurative 〈喻〉he had crammed so much into his short life.
他在短暂的一生中做了这么多事情。
1.3
- no obj. study intensively over a short period of time just before an examination（考试前）临时抱佛脚：
lectures were called off so students could cram for the semester finals.
讲课被取消了, 好让学生集中时间复习并准备期末考试。
1.4
- with obj. make (someone) study in such a way使考前临时抱佛脚。
词源
Old English crammian, of Germanic origin; related to Dutch krammen 'to cramp or clamp'.