Now that we've figured out the ancient Greek meaning of pneumonia, we can stick it together with peri to get the peripheumon-their word for a lung problem.

既然我们弄明白古希腊语单词 pneumon的意思了，我们就可以把它与前缀peri 组合到一起，得到单词peripheumon ——古希腊人用它来指称肺部病症。