This is the 4100th most frequent Chinese word.
历经
To experience or go through.
In this context, "历经" emphasizes the experiences and the action of undergoing challenges over a period of time.
历经了许多困难，他终于完成了自己的梦想。
Having undergone numerous hardships, he finally achieved his dreams.
Here, "历经" describes the passage of significant time and changes that the city has experienced.
这个城市历经几百年的演变，现在已经非常繁荣。
This city has undergone centuries of evolution and is now very prosperous.
The word "历经" in this sentence highlights the tested endurance and growth of their friendship over time.