What does it mean for the elderly to live in the first year?

Alas, I almost read it wrong and took my preference for a dog. . A little dizzy. .

But you have a problem here. It should be "ten days" instead of "favoring one over the other"

Ten days is a unit of time.

This was used by China people in ancient times and is still in use today.

Ten-day characters usually have two uses:

It is used in months, and a month is ten days, such as the first, middle and last days of a month.

Used for the age of middle-aged and elderly people, ten years old means ten years old, such as over fifty, over eighty and so on.

Therefore, your "first year of the elderly" is the end of a decade, and it is also the tenth year of a decade.

For example, an old man who is 60 years old but not more than 60 years old is called "the year of ten years old";

After 60 years, even if it is more than one day, it will not be described as "ten years old", but "over 60 years old."

This is a decagon commonly used in real life.

Okay, see?