这几天，雾霾太严重了，每天都是灰蒙蒙的雾霾笼罩着天空。
These days, the haze has been too severe, with gray haze covering the sky every day.
妈妈给我讲过北京、河北的雾霾更严重，高速路很多都封起来了。哎！为什么它是中国首都呀？我觉得叫中国“霾都”还差不多。
My mother told me that the smog in Beijing and Hebei is more severe, and many highways are closed. Hey! Why is it the capital of China? I think it's called China; Haze City; It's quite similar.
雾霾是如何形成的呢？当PM2。5超过大气循环能力和承载度，极易出现大范围的雾霾。PM2。5又是什么呢？PM2。5是指大气中直径小于或等于2。5微米的颗粒物，它含有大量有毒有害物质，对人体健康和大气环境质量有着严重的影响。
How is smog formed? When PM2. Exceeding the atmospheric circulation capacity and carrying capacity can easily lead to widespread haze. PM2。 What is 5 again? PM2。 5 refers to a diameter in the atmosphere that is less than or equal to 2. Particles with a size of 5 microns contain a large amount of toxic and harmful substances, which have a serious impact on human health and atmospheric environmental quality.
雾霾是如何侵入人体并破坏健康的呢？那就让我细细说来。
How does smog invade the human body and damage health? Then let me explain it in detail.
PM2。5和它的“兄弟们”正进行着一项“闯关游戏”，而这项闯关游戏直接危害着人类的健康。
PM2。 5 and its; Brothers” A project is currently underway; Challenge Game” And this challenging game directly endangers human health.
第一关：鼻孔。它们进入鼻孔以后，大约20微米以上的“兄弟”都在这阵亡；第二关：咽喉。这一关只有大约10微米以上的才会“离世”，但PM2。5它们身体轻盈，却很好通过。第三关：肺泡，它们一路和白细胞、淋巴细胞作战，人类的肺泡有3亿多个，它们一旦挡住肺泡，人类就喘不过气来。
First level: nostrils. After entering the nostrils, they are about 20 microns or more in size; Brother” All died here; Second level: Throat. This level is only applicable to particles larger than approximately 10 microns; Passing away; But PM2. They have a light body, but they pass easily. The third level: alveoli, they fight against white blood cells and lymphocytes all the way. There are over 300 million alveoli in humans, and once they block them, humans can't breathe.
并且，注意了！它们有“高级小兵”——直径小于0。5微米，可以直接进入血管，只要有更多“高级小兵”，就会让血管变窄，血压升高，引发血栓；而且会向人类“核心”发起进攻，因此引发心肌缺血、损伤，心律紊乱，引发心梗……雾霾的危害实在太可怕了！
And, pay attention! They have; Senior Soldier; — — The diameter is less than 0. 5 microns, can directly enter blood vessels, as long as there is more; Senior Soldier; It will narrow blood vessels, increase blood pressure, and cause blood clots; And it will also benefit humanity; Core” Initiate an attack, resulting in myocardial ischemia, injury, arrhythmia, and heart attack; … The harm of smog is really terrible!
其实，我们每口呼吸，雾霾都在“杀人”。
In fact, with every breath we take, the haze lingers; Murder;.
如果我们每一个人都能从自身做起，少开车，绿色出行；多种树，保护森林……相信未来我们就能天天看到蓝天白云、青山绿水了。
If each of us could start from ourselves, drive less and travel in a green way; Multiple trees, protecting forests… … I believe that in the future, we will be able to see blue skies, white clouds, green mountains, and clear waters every day.