The judge will generally cite some reason for overruling the precedent, such as changes in technology or community values since the precedent was established, but he or she does not need to do so.

• 法官将会大概列出一些否决先例的原因，如先例制定以来的技术和和社会观念都发生了变化，但是他（她）没有必要这么做。