It's about the geographical location of Hainan Island. Pearl refers to the dazzling place of Hainan Island. The implication is that Hainan Island has changed a lot in recent years and has become a dazzling pearl on Hainan Island! Expressed the speaker's great love for Hainan Island.
Extended data
Hainan Island is praised by biologists as a natural "species gene bank" and the largest "natural museum". It has the reputation of "Southern Medicine Kingdom"; The wild species in Hainan, such as wild rice, small grain rice, wild litchi, wild tea and red shell pine, are of inestimable value in scientific research and production. 102 rare animals, including black-crowned gibbon and Hainan deer, are listed in the national first-and second-class key protected animals list. ?
Hainan island's magnificent mountains and rivers, magical virgin forests, rare tropical animals and plants, charming coconut wind and sea rhyme and other natural landscapes; Li and Miao customs, precious revolutionary memorial sites and cultural relics and other cultural landscapes; Coupled with the pleasant climate, it has formed rich tourism resources.
According to ancient books, in the pre-Qin period, Hainan Island and the South China Sea Islands belonged to the Central Plains Dynasty. Since the Qin Dynasty, the administrative offices of Xiang Jun, Nanyue, Zhu Ya, Yu 'er County, Huguang, Guangxi, Guangdong and Hainan Province have been established, and 1988 has established Hainan Province, of which Hainan Island belongs. Hainan is the only Li inhabited area in China. ?