re·fresh·er course
noun/rɪˈfreʃə kɔːs/
/rɪˈfreʃər kɔːrs/
(also refresher especially in North American English)
- a short period of training to improve your skills or to teach you about new ideas and developments in your job
进修课程
英汉双解词典包含314281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。