This is the 2581st most frequent Chinese word.
肺部
Lungs.
'肺部' refers to the lungs as an organ and is used in a general description of their function.
肺部是人体的重要器官，负责气体交换。
The lungs are important organs in the human body responsible for gas exchange.
In this sentence, '肺部' is associated with health issues and identifies the affected area of the body.
最近的研究发现，污染严重的地区居民的肺部健康问题更为普遍。
Recent studies show that lung health problems are more common among residents of heavily polluted areas.
Here, '肺部' is used in the context of a medical examination to specify the part of the body being examined.