Besieged city was a Chinese word that meant "a besieged city". It was a metaphor for some kind of predicament or limitation. The word originated from the 19th century Chinese book Fortress Besieged, which depicted a character's life experience in a besieged city, which profoundly revealed the meaning and impact of this predicament. The word besieged was often used to describe various types of predicament, such as besieged in life, besieged in occupation, besieged in love, and so on. These predicaments were often due to various restrictions and obstacles that made it difficult for people to find a way out. The essence of a siege was a kind of restriction. It made people feel bound and limited, but it also made people feel challenged and opportunities. Therefore, the phrase besieged city was often used to describe the difficulties in life and work, reminding people to face these difficulties bravely and explore opportunities and challenges from them, constantly breaking through their limitations and realizing their own life value.