allo stesso tempo bedeutet auf Englisch

simultaneously▼(occurring at the same time)
adverb
[UK: ˌsɪml.ˈteɪ.nɪə.sli] [US: ˌsaɪ.məl.ˈteɪ.niə.sli]

then▼(at the same time; on the other hand)
adverb
[UK: ðen] [US: ˈðen]