refresher
US /rɪˈfreʃ.ɚ/
UK /rɪˈfreʃ.ɚ/
名詞
1.
リフレッシュ
a course to practice and improve skills, especially because you have not used them for a long time:
例:
•
I took a refresher course on new techniques in design to bring myself up to date.
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