보급普及 diffusion; distribution; popularization 언급言及 mentioning; referring; reference 파급波及 spread; extension 파급력波及力 ripple effect 후회막급後悔莫及 useless regretting; deep regret; extreme remorse 가급적可及的 if possible 과유불급過猶不及 more is just as bad as less 급及 as well as; also 급기야及其也 at last 급제及第 pass 보급형普及型 low-end product 소급遡及 retroactivity