study intensively, as before an exam
同义词：cram??/??grind away??/??drum??/??bone up??/??swot??/??get up??/??mug up??/??bone
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。