英语翻译Becauseofthis,cigarettecountryisalwaysabout8000feetabovesealevel.Someonewhosmokesandlivesatsealevelgetsaslittleoxygenasanonsmokeratanaltitude（高度）ofnearlytwomiles.Oxygeniscarriedthroughyourbod

Question

英语翻译
Because of this ,cigarette country is always about 8000 feet above sea level .Someone who smokes and lives at sea level gets as little oxygen as a nonsmoker at an altitude（高度）of nearly two miles .
Oxygen is carried through your body by the red blood cells .But this poison gas ,CO,will get to the blood cells before the oxygen can .So ,if you smoke your blood carries five to ten times more of this deadly gas than is normal .To make up for this ,your body must make more red cells .
The oxygen in your blood passes into your tissues（组织）.But here again CO makes trouble .It keeps the oxygen from passing into your tissues as fast as it should .Because of this ,cigarette country is always about 8000 feet above sea level .Someone who smokes and lives at sea level gets as little oxygen as a nonsmoker at an altitude（高度）of nearly two miles .This happens to everyone who smokes ,no matter how old or how young .Anyone who competes in sports can tell you that those who smoke run out of breath more quickly than those who do not .
出自此文，如何理解呢？

Answer 1

大概意思是,如果吸烟的话CO会影响一个人对氧气的吸收.把吸烟的人和高原上的人作比喻（高原是缺氧的,海拔越高氧气越少）.所以说一个在海平面生活的吸烟者与一个在海拔2英里左右的不吸烟的人得到的氧气是一样的.