Bill已经小学毕业6年了用英语怎么说

"Bill has graduated from elementary school for 6 years" 可以用英语表示为 "It has been 6 years since Bill graduated from elementary school."
来源： 这句话使用了时间状语从句，其中"since" 指的是从过去某一时刻起经过的时间。 "It has been" 是现在完成时的形式，表示过去发生的事情对现在造成的影响。
例句:
"I haven't seen my friend in 5 years. It has been 5 years since I last saw her." ( 我5年没见过我的朋友了。我上次见她已经5年了。)
"It has been 10 years since I graduated from college." (我毕业大学已经10年了。)
"I've been living in this city for 7 years. It has been 7 years since I moved here." (我在这个城市住了7年了。我搬到这里已经7年了。)