refresher course - Tìm kiếm | Laban Dictionary - Từ điển Anh - Việt, Việt - Anh

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refresher course /ri'fre∫ə[r] kɔ:s/

Anh-Việt Anh-Anh

lớp bổ túc
noun

plural ~ courses

[count] :a training class which helps people review information or learn new skills needed for their jobs

The staff is required to take refresher courses every three years.