大年和小年中不幸的事可以表达为：1. Inauspicious things during big year and small year include accidents, illnesses, and financial losses.2. There are some unfortunate events that can occur during the big and small years, such as accidents, sickness, and financial setbacks.3. During the period of big and small years, there may be some unlucky occurrences, such as accidents, illnesses, or economic downturns.4. In the time leading up to the Lunar New Year, there can be a number of unfortunate events, such as accidents or unexpected financial troubles.