ποταμῷ γὰρ οὐκ ἔστιν ἐμβῆναι δὶς τῷ αὐτῷ → it is impossible to step twice in the same river, you cannot step twice into the same rivers
pl. poét. de δόρυ.
δόρη: Eur. nom. и acc. pl. к δόρυ.
