can't make head nor/or tail of (something)
to not be able to understand something at all.
We couldn't make head or tail of the film.
'What does his message say?' 'I don't know - I can't make head or tail of it.'
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。