ı don't know; ı have no idea

listen to the pronunciation of ı don't know; ı have no idea
Английский Язык - Английский Язык

Определение ı don't know; ı have no idea в Английский Язык Английский Язык словарь

I don't know; I have no idea.
beats me

Flowering shrubs don't thrive in the subterranean caverns from which geysers spring, suggested Bradley. Olson shook his head. It beats me, he said.