【Kaiser3344提供英语地道翻译】
玉不琢不成器 人不学不知道
【翻译】If jade is not polished, it cannot become a thing of use. If a man does not learn, he cannot know his duty towards his neighbor.
【解析】
If jade is not polished, it cannot become a thing of use.
美玉如果不(经过)雕刻打磨,就不可能变成(精美的)玉器.
If a man does not learn, he cannot know his duty towards his neighbor.
(少年)人如果不(努力)读书学习,就不会懂得(为人民服务及济世救国的)道理.
【楼主】完全按照您的要求来的,若觉得满意,望多多支持哈!