但是有的时候他也不知道究竟学到了什么的翻译：But sometimes he does not know what is learned 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

But sometimes he does not know exactly what to learn

But sometimes he does not know what is learned

Sometimes but he did not know actually has learned any

However, sometimes he did not know what exactly what

But sometimes he does not know what is learned