dismal days were considered unlucky, while red-letter days were important festivals throughout the year.
不吉利日被认为是倒霉的日子,而吉利日是一年里重要的节日。
e. g: it was one of the red-letter days of my life.
这是我一生中最值得纪念的日子之一。
dismal days were considered unlucky, while red-letter days were the principal feasts and saints' days to be celebrated or observed throughout the christian year.