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skill upgrading

强调
社会学 повышение квалификации (обучение)
skills upgrading
一般 повышение квалификации (When it opened in 1970 Douglas College offered courses in three program areas: career and vocational training leading to a certificate or diploma, academic studies for university-bound students and community-oriented courses including skills upgrading. (The Greater Vancouver Book, ed. Chuck Davis) ART Vancouver)
skill upgrading
: 7 短语, 3 学科
一般4
教育2
法律1