İzafiyet teorisi, bilim konusunda uzman insanlar için bile anlaşılması zor görülebilir. - The theories of relativity can seem recondite even for people who are well versed in the sciences.
الإنجليزية - الإنجليزية
تعريف profound, deep, difficult to comprehend; relatively unknown, obscure في الإنجليزية الإنجليزية القاموس.