C1 informal令…无法理解;非…所能及
If something is beyond you, you are unable to understand it.
Physics is completely beyond me. 恐怕我根本就学不会物理。
Quite how this process works is beyond me.
How she finds time to do everything is beyond me.
The editorial board claimed that they had no explanation for the plagiarism - that how it made it to publication was completely beyond them.
Don't ask us where she gets all her money from. It's completely beyond us.
How anyone can call this progress is beyond me.
See also: beyond (NOT UNDERSTAND)