单词	地下建设
释义	地下建设 infrastructure
随便看	vaccination history vaccination immunizes one against smallpox Vaccination immunizes one against smallpox Vaccination immunizes people against smallpox vaccination instruments set Vaccination is a preventiveagainst smallpox vaccinationist vaccinationists vaccination knife vaccinationlike vaccination mark vaccination marks Vaccination,Mass vaccination methods vaccination needle vaccination network vaccination of plant vaccination of plants Vaccination on time Vaccination percentage vaccination program vaccination programme Vaccination rate vaccination reaction vaccination reactioon