evenly(so as to make flat) adverb [UK: ˈiːvn.li] [US: ˈiː.vən.li]I don't think the birds know they ought to space themselves out evenly. = Yo no creo que las aves sepan que deberían separarse uniformemente.
uniformly(in a uniform manner) adverb [UK: ˈjuː.nɪ.fɔːm.li] [US: ˈjuː.nə.ˌfɔːrm.li]
