副词短语
中文翻译：从很久以前开始同义词
同义词：
['from the very beginning', 'from the start of time']
例句：
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1. The story goes back as far back as the 19th century.
这个故事可以追溯到19世纪。
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2. We have been friends for as far back as we can remember.
我们成为朋友的时间可以追溯到我们能记得的时候。
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3. This invention dates back as far back as the 18th century.
这项发明可以追溯到18世纪。