Ключевые слова: 21, 2021, appointment, background, birthday, brown, business, calendar, celebrate, celebration, concept, copy, cover, cube, date, day, deadline, empty, event, festival, future, holiday, light, mirror, month, negative, nov, november, number, object, plan, reflection, season, shadow, sign, space, symbol, time, wedding, week, white, wooden, work, year,