The capital and largest city of Hainan Province [[海南省|海南省|hai3 nan2 sheng3]], located on the northern coast of Hainan Island.

to boast; to talk big; to make a grand promise or claim that may be difficult to fulfill

estuary; the place where a river flows into the sea

to boast; to talk big; to make empty promises without any basis in reality

an estuary where a river flows into the sea; a river mouth; a port that provides access to the sea