What had once been a subculture in South Korea quickly became the main stream with B-boys and B-girls appearing on best time TV shows and advertisements.
什么曾一度成为亚文化在韩国迅速成为主流，b型男孩和b女孩出现在最佳时机，电视节目和广告。
2
Tom's university education gave him an advantage ( B ) boys who had not been to a college.