i just don't know off the top of my head.怎么翻译?不理解off 这个介词

I don't know,just love for I don't know the r____meaning of the word.I am just guessing it. I don't really know,I'm just guess g______RT I Don T Know Why (I Just Do) (Live) 歌词 i hear you but i just don't know I don't know any of them don't you know I just dream by your Just丶 I don't know what to say是什么意思? 大姐 I don't know what to say...I'm just thinking of you a lot ...大姐 I don't know what to say...I'm just thinking of you a lot at this moment 知道的说下,. i just don't know what i'm doing wrong My heart is broken because of you!是i just don't know what i'm doing wrong My heart is broken because of you! I don’t know what say,I’m just thinking of you a lou at this moment.中文是? I don't know what to say...I'm just thinking of you a lot at this moment. I care just of you ,so i don't want to see you take about with she.DO you know i just don't know off the top of my head.怎么翻译?不理解off 这个介词 I don't know how to say you doI just this moment of suddenly miss you very much 英语翻译1.Just meet2.I don't know him.3.wears giasses.4.of medium height5.See you later I don't know. i know just what i don't know的意思 要说的合理