每日背誦第五期49
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.
狗一般活不過20年，但也有些例外，最佳記錄是有些狗曾活了20至25年。狗最長壽的可靠年齡是29年多一點(diǎn)點(diǎn)，很少的狗會(huì)活得過這個(gè)年紀(jì)太多。
