Among other weaknesses, the measures cities must employ when left to tackle dirty airon their own are politically contentious, and therefore vulnerable.
除其他弱点外，城市在独自应对空气污染时而必须采取的措施存在政治上的争议，因此也很易受到攻击。
2
A rush of airon my face woke me.
脸上的一股急促的气流惊醒了我。
《柯林斯英汉双解大词典》
3
The fight will be televised free to airon the Fox Network.