请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错...请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错误请帮忙改正,改正

请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错...请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错误请帮忙改正,改正
请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错...
请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错误请帮忙改正,改正后顺便解释下语法,

请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错...请问I don't understand you said.和I don't understand what you said.两句有哪些区别?或者有什么错误请帮忙改正,改正
I don't understand you said 错误句子,没有这种说法,更谈不上什么区别.
后一句翻译：我不明白你在说什么.