The observance of something such as a law or custom is the practice of obeying or following it. (对法律、习俗等的) 遵守
noun [具体名词] 惯例;遵守;仪式;庆祝
County governments should use their powers to ensure strict observance of laws. 县政府应该利用他们的权力确保法律的严格遵守。