as we know和as we all know的区别

　　As we all know, food is closely related to our daily life.

　　众所周知,食物与我们的日常生活息息相关。

　　As we all know, bordersafety is very important to a country.

　　众所周知,边境安全对一个国家来说非常重要。

　　As we all know, respecting the old and taking care of the young is a good Chinese tradition.

　　众所周知,尊老爱幼是中华民族的优良传统。

　　The new rules could mean the end of football as we know it.

　　这些新规则可能意味着我们熟悉的足球终结了。

　　He planned to end the welfare system as we know it.

　　他计划终止现行的福利制度。