Dogs generally do not live more than 20 years. But there have been a few exceptions. Good records exist for several dogs which are known to have lived between 20 and 25 years. The oldest reliable age for a dog is a little beyond 29 years. It is believed that very few dogs have lived much beyond this age. 狗一般活不过20年，但也有些例外，最佳记录是有些狗曾活了20至25年。狗最长寿的可靠年龄是29年多一点点，很少的狗会活得过这个年纪太多。 编辑推荐：2009年下半年公共英语考试报名汇总 名师指导公共英语阅读考试技巧 公共英语pets三级全真模拟试卷 公共英语pets二级语法讲解汇总