看看with做什么成分?1.The first hawaiians settled th islands over150

看看with做什么成分?
1.The first hawaiians settled th islands over1500 years ago,with eac island becoming a separate kingdom
2.White Americans appeared in 1820,with Chinese settlers arriving soon after
3.the city has many areas,each with a flavor all its own
4,Honolulu is the business district,with the library(这里可不可以不用逗号?)