In this task, given a sentence in the English language, your task is to convert it into the Khmer language.
Q: The cause of the syndrome is not yet well understood.
A: 
មូលហេតុបណ្តាលឲ្យមានសញ្ញានេះនៅមិនទាន់បានយល់ច្បាស់នៅឡើយទេ។