보급diffusion; distribution; popularization 언급mentioning; referring; reference 파급spread; extension 파급력ripple effect 후회막급useless regretting; deep regret; extreme remorse 가급적if possible 과유불급more is just as bad as less 급as well as; also 급기야at last 보급형low-end product

제일first 제일most 낙제failing; flunk 낙제생failed student 낙제점failing grade; flunk 제삼자third party 제일선frontline 제일주의prioritization