is four times more likely to have heart disease than a non-smoker of the same age英文翻译 什么意思?
问题描述:
is four times more likely to have heart disease than a non-smoker of the same age英文翻译 什么意思?
答
同龄人中吸烟者患心脏病的概率是不吸烟者的四倍