sin demora znamená v Angličtina

immediately▼(in an immediate manner)
adverb
[UK: ɪ.ˈmiː.dɪət.li] [US: ˌɪ.ˈmiː.diət.li]

right away▼(very soon; immediately)
adverb
[UK: raɪt ə.ˈweɪ] [US: ˈraɪt ə.ˈweɪ]