be under no illusion
US /biːt əˈraʊnd ðə bʊʃ/
UK /biːt əˈraʊnd ðə bʊʃ/

1.
tidak berkhayal, tidak salah faham
to understand the true facts of a situation and not have false ideas
:
•
You should be under no illusion about the difficulty of this task.
Anda seharusnya tidak berkhayal tentang kesukaran tugas ini.
•
We are under no illusion that this will be easy.
Kami tidak berkhayal bahawa ini akan mudah.