Er ist Bauer und Lehrer zugleich.it: Lui fa il contadino e allo stesso tempo l'insegnante.
Duolingo forum topic: https://forum.duolingo.com/comment/22254243
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Duolingo accepts "al tempo stesso", "allo stesso tempo" and "contemporaneamente" as translations of "zugleich".
Another synonym (curretly rejected) is "al contempo", which imo is no less common than the first two phrases.
I'm sharing this for German speakers learning Italian who may be interested in expanding their vocabulary.
N - B2 (working towards C1) - Learning - Dabbling in ,