Russian | English |
исключительно редкий | once in a lifetime (шанс; idiom; An offer like that will come just once-in-a-lifetime. Val_Ships) |
исключительно редкий (шанс или возможность | once in a lifetime (idiom; An offer like that will come just once in a lifetime. Val_Ships) |
крайне редкая | once-in-a-lifetime (возможность; idiom Val_Ships) |
крайне редкое событие | one-off event (Val_Ships) |
столь же редкий | equally as rare |