it is estimated that smoking kills over 300，000 people in the u . s . every year . smoking is the largest preventable cause of premature death and DDD
据估计，美国每年有超过30万人死于吸烟。在美国，吸烟是导致过早死亡和残疾的最大预防理由，每年美国死亡人数的六分之一与吸烟有关。
It is estimated that .据估计，有人估计。
It is estimated that up to 100，000 people watch or take part in fox hunting。据估计，多达10万人观看或参加猎狐活动。
太早了，太早了。Disability n .残疾。
In the U.S，About 23 billion dollars are spent in medical costs from the effects of smoking . over 30 billion dollars are lost because of loss of works
在美国，大约有230亿美元用于治疗吸烟的影响。超过300亿美元的损失是吸烟造成的工作时间损失和生产力下降造成的。
Because of是因为以下原因：the road is closed because of the snow。这条路因雪而关闭。
Productivity/prdktvti/生产力、生产力。
the serious diseases most frequently caused by smoking are : lung cancer(the risk of smokers is 10 times greater than for nons mokers)che
吸烟引起的最常见的严重疾病是肺癌(吸烟者的危险比不吸烟者高10倍)、慢性支气管炎、心脏病发作、中风(吸烟者的危险比不吸烟者高近3倍)、心脏病和腿痛。
朗讯肺癌。CHRONIC BRONCHITIS/KRNK//BRKATS/慢性支气管炎。Stroke/strk/n .中风。
It is never too late to quit smoking。two years after stopping，your risk of heart attack returns to average。after 10 years，Your risk of lung cancer is back to nearly normal . after 2 years，there is a decrease in lung cancer risk by about one-third .
戒烟并不晚。戒烟两年后，心脏病发作的危险将恢复到平均水平。十年后，患肺癌的危险几乎恢复了正常。戒烟两年后，肺癌的危险减少了约三分之一。
Quit停止，退出。Quit it！That hurts！别说了！这东西害人！Do you want to quit smoking？你要戒烟吗？Decrease n .减少，减少。
