pneumin

例句：

1. 1. The lungs are the organs that filter the air we breathe in.
   肺部是过滤我们呼吸的空气的器官。
2. 2. Pneumonia is a bacterial infection that affects the lungs.
   肺炎是一种细菌感染，影响肺部。
3. 3. During sleep, our bodies need to remove carbon dioxide from the blood and replace it with oxygen.
   在睡眠时，我们的体内需要从血液中去除二氧化碳并替换成氧气。