What do you mean by replacing the mouse with a new one?

"The Year of the Pig has passed, the Year of the Rat has come, and the old year has been renewed."

The word "tapir" stands for "pig", which is one of the twelve Chinese zodiac animals in China. According to the sorting, the Year of the Pig is the Year of the Rat, and the term "tapir to kill rats" here means that the Year of the Pig in Jihai of the lunar calendar begins on February 5, 20 19 and ends on October 24, 2020 10.

After the end of the Year of the Pig, the Year of the Rat will be ushered in in 2020, and the later "trade-in" also emphasizes that the Year of the Pig is a past tense, an old year, and the Year of the Rat is a new year.

Extended data:

The Year of the Pig is counted from beginning of spring in the twenty-four solar terms, because the zodiac year is attached to the calendar year of the trunk and branch, and the calendar year of the trunk and branch is the calendar year method of the trunk and branch. The same is true of the official almanac of past dynasties (that is, the Yellow Calendar). There is no doubt that the lunar calendar only uses branches to mark the year, which ranges from the first day of the first month to New Year's Eve.

Lunar calendar and trunk calendar are two different calendars, which are different in the starting point of a year, the division rules of months and the number of days in each year. Due to the use of the Gregorian calendar after the Republic of China, many people, including a few so-called experts, lack calendar knowledge, so the two are often confused.