as far back as的意思|示意
早在，远在
as far back as的用法详解
英语单词as far back as的用法讲解
as far back as 是一个常用的状语短语，它的意思是“多久以前，多久之前”，相当于since。
例句：
1. We have been friends as far back as I can remember.
我记得多久以前，我们就是朋友了。
2. I have been living in this apartment as far back as 8 years ago.
多久以前，我就住在这里了。
3. Chinese culture has a long history as far back as over 3000 years ago.
多久以前，中国文化已有3000多年的历史了。
as far back as 通常用于句中，其后接一个完整或缩略时间状语，即 a specific time，如：5 days ago，2 years ago，last week等，也可以接一个完整的句子，如 I can remember，I can recall，I know等。
此外，as far back as 也可以表示“尽管多久之前”的意思，与even though的意思类似，如：
4. As far back as I can remember, he has been friendly to me.
尽管多久以前，他都待我友好。
as far back as相关短语
1、 go back as far as 追溯到
as far back as相关例句
The book ranges historically as far back as the Florence of the Renaissance.
这部书一直回溯到文艺复兴时期佛罗伦萨的历史.
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As far back as 1920 s attention was directed towards the problem.
早在20年代,人们就注意这一问题了.
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Gunpowder was used in China as far back as the 11 th century.
远在公元11世纪,中国已使用火药.
《现代汉英综合大词典》
I knew him as far back as 1904.
我早在1904年就认识他了.
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As far back as I can remember you have always been there when I needed you.
在我的记忆里,我需要你时,你总在我身边.
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As far back as February 1923, Paul Harris wrote, Rotary is not an organization for retrospection.
早在1923年2月, 保罗哈利斯写著: [轮社并非缅怀过去的社团.
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