mindkettő meaning in English

either▼◼◼◼adverb
[UK: ˈaɪ.ðə(r)] [US: ˈiː.ðər]John can write with either hand. = John mindkét kézzel tud írni.

both▼noun
[UK: bəʊθ] [US: boʊθ]

for both our sakes▼◼◼◼[UK: fɔː(r) bəʊθ ˈaʊə(r) seɪks] [US: ˈfɔːr boʊθ ˈaʊər ˈseɪks]