副词短语
中文翻译：远远早于
同义词：
['before long', "long ago例句：1. I'll be there long before you arrive.（我比你到达那里要早。）2. The project will be completed long before the deadline.（这个项目将在截止日期之前完成。）"]
例句：
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1. I'll be there long before you arrive.
我比你到达那里要早。
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2. The project will be completed long before the deadline.
这个项目将在截止日期之前完成。
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3.He was born long before the invention of the printing press.
他出生在印刷术发明之前。