"If" in classical Chinese has many meanings, such as like; and, comparable; you, you; such, this; as for; if, if; or, or; as if, it seems, etc. Its original meaning was "Shun", but later generations used it as "Xiang" and "Ru". From "Ru", it could be extended to "Ji" and "Da". The novel,"The Morality of the Past", is equally exciting. Everyone is welcome to click and read it!
In classical Chinese, the word "square" meant "square", which meant that the plane figure in geometry was usually expressed as "square". In classical Chinese,"Fang" could also mean "direction" such as "Fang Xing","Fang Suo", etc. In addition,"square" could also mean "scale","lineup", and so on.
The meaning of classical Chinese was that the illness was very serious and had reached an irreversible point. It was usually used to describe a person's condition that was so serious that it could not be cured or had reached the terminal stage. The gist of classical Chinese was usually to emphasize the severity of the illness and the irreversible consequences, reminding people to take the illness seriously and take timely measures to prevent it from worsening. Sometimes, this sentence was used to condemn someone or something for being irresponsible.