a household word的用法和样例：
例句
- Hoover has become a household word for a vacuum cleaner through the world.
在世界各地，家家户户都知道胡佛已成了吸尘器的代名词。 - Cindy married one of her publishers and became a household word.
辛迪嫁给了她的一位出版商，成了家喻户晓的人。 - The product was so successful that its name became a household word.
这一产品非常成功，其名称已经家喻户晓。
