i wouldn't know 和 i don't know 有什么区别呢?只是委婉一点吗?

i wouldn't know 和 i don't know 有什么区别呢?只是委婉一点吗? 请问i wouldn't know和i don't know的区别是什么? 两个简单的英语语法问题,I don't know和I didn't know有什么区别额? i don't know what you mean和i don't know what do you mean 有区别 I don't know anything 和 I don't know nothing的区别 I don‘t know I don't know I don't know. i don t know和I didn't know的区别 “i don't know you know i don't know I don't know 和 I have no idea 有什么不同吗? sorry,I don't know!什么意识?