Pronunciation: [səɹˈʌlə͡ʊ] (IPA)
Correct spelling for the English word "cerullo" is [səɹˈʌlə͡ʊ], [səɹˈʌləʊ], [s_ə_ɹ_ˈʌ_l_əʊ] (IPA phonetic alphabet).