What is the initial limit, middle limit and final limit?

Limit your fingers to one or two rounds at first. The middle limit refers to middle age. The last limit is after 50 years old. The deadline refers to the Universiade once every ten years. The so-called limit refers to a 12-year Universiade. ?

(1) "Initial limit" refers to one round or the first two rounds. ?

② For the original source of the word "initial limit", see "initial limit 234" below.

Age appellation is an ancient name for age. The age of ancient people is sometimes expressed by other titles instead of numbers. Age appellation is mostly recorded in books, and has been used ever since.

Extended data:

The ancient age appellation came from different sources, most of them were named according to the physiological characteristics of different ages, but some of them followed the words of their predecessors and became fixed names.

Of all age appellation, the title "ninety" is the most interesting. Or "mackerel back", mackerel is a kind of fish, and the stripes on its back are like the wrinkled skin of an old man. In old age, senile spots appear on the skin, such as the skin of frozen pears, so it is also called "frozen pears".

There are also names based on physiological characteristics, for example, people are called "babies" at birth because they need to be held on their chests to feed them. Babies can pass fake, fake breasts. A baby is a child held on his chest. Seven years old is not only called "mourning", but also called "smashing teeth".