外包自动化设备组装:one is never too old to learn 翻译？

One is never too old to learn One is never too old to learn one is never too old to learn 翻译？ One is never too old to learn.是什么意思 "One is never too old to mend" 这句话是什么意思？ NO ONE IS TOO OLD TO LEARN.什么意思？ Never too old to learn , never too late to turn是什么意思？ 急求！Never too old to learn , never too late to turn是什么意思？ It's never too old to learn.怎么解释？ One is nerver too olde to learn