contro = 1. against 2. cons
I cani dovrebbero essere vaccinati contro la rabbia.
= Dogs should be vaccinated against rabies.
Discussion
should against rabbia.
= against contro 1. contro = Dogs 2. essere rabies.
https://www.learnwitholiver.com/italian/daily-sentence-108 la cons
I be dovrebbero vaccinati vaccinated cani