This is the 7817th most frequent Chinese word.
阿里山
Ali Mountain, a famous scenic mountain area in Taiwan.
阿里山 is used as a proper noun referring to the famous mountain and landscape area, Alishan.
阿里山的风景非常美丽，吸引了许多游客。
The scenery of Alishan is very beautiful and attracts many visitors.
阿里山 is used to describe the destination of the trip, again referring to the place.
去年我们假期去了阿里山，享受了那里的自然环境。
Last year during the holidays, we went to Alishan and enjoyed the natural surroundings there.
阿里山 specifies the subject of study, which is the ecological aspect of the Alishan area.