As recently as five years ago, US migration was twice the rate of European Union states.

就在5年前，美国的移民率还是欧盟国家的两倍。

youdao

The union between the two countries was effected three years ago.

两国合并是三年前实现的。

《新英汉大辞典》

They are repeating things that the US and Soviet Union did 40 years ago.

相同的尝试早在40年前的美国和前苏联实现。

youdao

President Abraham Lincoln led the Union of northern states in four years of civil war against the southern Confederacy.

VOA: special.2010.01.07

The resurgence of that relationship is a little Romantism in the cold war years when the Soviet Union and India were very warm...had warm relationships, integrated to each other.

印美关系的复苏,在冷战年代完全是理想主义,当时苏联和印度,还保持着非常良好的关系，交往密切。

普林斯顿公开课 - 国际座谈会课程节选

This year, no, not really. Um, years past, I was in a Columbia Political Union,

今年没有，但是去年，我参加了哥伦比亚政治联盟，

写作课程比较难 - SpeakingMax英语口语达人

Over the past four years union membership has fallen by 400, 000, to its lowest level since the 1940s.

ECONOMIST: Labour and the unions need each other more than ever

Patricia Wood, a 60-year-old homemaker, still hasn't moved back into her residence of 34 years in Union Beach that she shares with her husband, a driver for a phone company.

WSJ: Battle of the Beach

They also came two years before the union and GM are actually scheduled to renegotiate their contract.

NPR: GM, UAW Make Deal on Benefits