词汇	service assurance
释义	service assurance 服务保证；服务保障
随便看	special education of vocal music special education resource center special educations Special Educations special educationschool special education school special-education school special education schools special education statistics special education subsidy special education teachers special educator special effect special-effect special effect amplifier special effect board special effect cinematography special effect circuit special effect control console Special Effect for Fish Skin special effect generator special effective process special effect light special effect machine specialeffect pigment