Severe erectile dysfunction的用法和樣例：
例句
- Testing of the products showed that they contained substances which are prescribed for the treatment of erectile dysfunction.
這些產(chǎn)品經(jīng)檢測顯示，其中含有用以治療勃起功能障礙的處方藥物。 - Aging men who have sex at least once a week have only half the risk of developing erectile dysfunction as do men who have sex less often.
上了年紀的男性每周至少一次的性生活，與較少進(jìn)行性生活的男性相比，前者勃起功能障礙的發(fā)生率為后者的一半。
