呼吸畅通的英文怎么说呢

"Breathing freely" 或 "having unobstructed breathing" 都可以用来形容呼吸畅通的英文表达。

关于这个表达的来源，它可以追溯到拉丁语的 "respirare"，意思是 "呼吸"。"Respirare" 的英语表达是 "respire"，后来发展成 "breathe"。"Breathe freely" 或 "have unobstructed breathing" 的意思就是呼吸自如，没有任何阻碍。

下面是一些例句：

The air was so fresh and clean that he felt pke he could breathe freely for the first time in days. 他感觉空气如此清新，以至于几天来他第一次呼吸自如了。
It's important to keep your nasal passages clear so that you can have unobstructed breathing. 保持鼻腔畅通很重要，这样你就可以呼吸自如。
She had struggled with asthma for years, but after undergoing treatment, she was finally able to breathe freely again. 她多年来一直患有哮喘，但在接受治疗后，她终于又可以呼吸自如了。