you live and learn idiom
（表示对得知的东西感到惊讶）真想不到
said when you hear or discover something that is surprising
I had no idea they were related. Oh well, you live and learn. 我一点都没想到他们之间还有联系。唉，真是想不到啊。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。