повратна точка angolul

turning point [turning points]▼(decisive point)
noun
[UK: ˈtɜːn.ɪŋ pɔɪnt] [US: ˈtɝːn.ɪŋ ˈpɔɪnt]

watershed [watersheds]▼(critical point marking a change in course or development)
noun
[UK: ˈwɔː.tə.ʃed] [US: ˈwɑː.tər.ˌʃed]