But those smaller than 10 micrometers can slide past these protections and settle in our bronchi and lungs .
但那些小于10微米的颗粒却可以穿过这些防护而最终附着于我们的支气管和肺上。
The air is warmed up before passing down the windpipe , where it 's divided at the bottom between two airways called bronchi that lead to either lung .
空气在进入气管前被加热了，在气管的底部分成两个导气管通向每一侧的肺，这两人分支被叫做支气管。
Within the lungs , the mucus-lined bronchi split like the branches of a tree into tens of thousands of ever smaller tubes ( bronchioles ) , which connect to tiny sacs called alveoli .
在肺部，布满粘液的支气管像树一样又分为成千上万个更小的管（细支气管），他们连接到叫做肺泡的小囊。
In the lungs , the bronchi further divided into smaller and smaller bronchi , and finally into bronchioles .
在肺里，主支气管又进一步分为越来越小的支气管。最后分成细支气管。
In more severely affected children and adults who are wheezing , inhaled bronchodilators , which widen the bronchi , can be used to open the airways and reduce wheezing .
