He said he had met me three years before.
他说他三年前看过我。
It will be three years before we meet again.
我们要三年后才能见面。
Three years before, the cold war had been declared over.
之前三年，冷战就已宣告结束。
I said my grand father had died three years before.
我祖父三年前就去世了。
The old woman was ill for three years before she died.
那老太太病了三年后，去世了。
It will be three years before we meet each other again.
我们再次见面还要过三年。
It could take two or three years before they come back.
可能需要两三年的时间才能涨回来。
They were cohabiting for three years before their marriage.
他们同居了三年才结婚。
I had worked in a hospital for three years before I came here.
我来这之前，在一家医院已经工作三年了。
He did that for three years before going to Harvard Law School.
三年后，他到哈佛大学法学院深造。
He had learned English for three years before he went to London.
他去伦敦之前已学了三年英语。
The drug trial lasted for three years before the drug was approved.
该药品经过三年的临床试验后才获得批准上市。
She had her baby in the summer of 1970, three years before the ruling.
1970年夏天，也就是判决结果出来的三年前，她的孩子出生了。
The Uruguayan round of talk lasted three years before it came to an agreement.
乌拉圭回合的谈判，在延期了三年后才最终达成协议。
After that, some can attend professional school for two to three years before work.
之后，一些可以参加专业学校两年到三年前的工作。
He has three more years in prison before he's served out his sentence.
他要在监狱里再待三年，才能服满刑期。
Before setting off, Alan spent three years training for the journey.
出发前，艾伦为这次旅行花了三年时间训练。
Normally, it takes three years of recovery before the market is up 60%.
通常说来，需要三年的经济复苏期股市才能上涨60%。
It was the third of March 1887, three months before I was seven years old.
这个重要的日子是1887年3月3日，我差三个月不满七周岁。
Before he came to China he had learned Chinese for three years.
来中国之前他学习汉语已经三年了。
In the next three years, I will study hard as before.
在以后的三年时间里，我会一如既往地努力。
I wrote three books in the first two years, a record never reached before.
我头两年写了三本书，打破了以往的记录。
I wrote four books in the first three years, a record never touched before.
我在头三年里写了四本书和一篇从未写过的报道。 ……打破了以往的纪录。
Three years went by before she knew it.
三年过去了，她才意识到这一点。
It was the third of March, 1887, three months before I was seven years old.
这是三月，1887年，三个月之前，我七岁的三分之一。
Three years went by before I realized it.
不知不觉，三年过去了。
Three years had passed by before we knew it.
不知不觉，过去了三年。(逆翻)。
The first signs usually appear before a child is three years old.
通常情况下最初症状出现在三岁之前。
The first signs usually appear before a child is three years old.
通常情况下最初症状出现在三岁之前。
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