我不知道去年你是否取得了很大的进步的翻译：I don't know if last year you have made a great progress 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

I do not know last year you made a great progress

I don't know if last year you have made a great progress

I did not know whether you have made the very big progress last year

Last year I did not know whether or not you have made a lot of progress

I don't know if last year you have made a great progress