The researchers used the fossils of a dinosaur that lived one hundred twenty-five million years ago.

VOA: special.2010.03.16

Suppose the planet were hit by a comet-- this happened--something like this happened sixty-five million years ago, so it could happen again.

假设这个星球被一颗彗星击中-,这样的事，大约六千五百万年前,发生过，所以它还可能再发生。

耶鲁公开课 - 金融市场课程节选

This Cambridge History of Food talks about three separate primary phases in human food evolution: one beginning a million and a half years ago, another about 700,000 years ago, and then the 10,000 year ago one that I talked about just a moment ago.

剑桥饮食史》描述了,人类饮食结构演化过程中的三个不同阶段,其一,始于一百五十万年前,其二,距今约七十万年,其三,距今一万年,我们刚讨论过了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This was formed by two explosions of the Jemez volcano more than one million years ago.

VOA: special.2010.07.05

Phase One, the million and a half years ago, in the early--in the late--Miocene and early Pleistocene phases, there was shift where people were less likely to be just going out and gathering foods from every place they could find it.

第一阶段,一百五十万年前,在整个中新世以及更新世的早期,情况开始转变,人们不光靠,出门四处搜集食物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Many scientists believe that a huge object from space hit Earth about 65 million years ago.

VOA: special.2009.01.20

The small dinosaur is thought to have lived about one hundred twenty-five million years ago.

VOA: special.2009.10.13

The ancestors of these reefs were formed at least two hundred forty million years ago.

VOA: special.2010.08.10

He said the huge continent had split more than two hundred million years ago.

VOA: special.2010.01.12

These creatures lived more than sixty-five million years ago, during Earth's late Cretaceous period.

VOA: special.2010.10.05

It happened almost sixty million years ago and again thirteen million years ago.

VOA: special.2010.02.02

Scientists say the area began forming almost two thousand million years ago.

VOA: special.2009.04.15

A large meteorite hit the area four thousand million years ago.

VOA: special.2009.07.29

The Grand Teton Mountains were formed about ten million years ago.

VOA: special.2009.02.16

The limestone developed about two hundred fifty million years ago.

VOA: special.2009.12.07

The huge animals died out about sixty-five million years ago.

VOA: special.2009.09.01

T.Rex lived between sixty-five and eighty-five million years ago.

VOA: special.2009.10.13

Then,seventy-million years ago, the Earth's surface, or crust,pushed upward.

VOA: special.2010.01.04

"It's a meat-eating dinosaur. It would have lived in the Late Jurassic period about a 140,150 million years ago.

VOA: standard.2009.12.08

More than one billion eight hundred million vehicles have used the bridge since it opened more than seventy years ago.

VOA: special.2010.07.23

Four years ago, the labor agency estimated that more than twelve million people were in some form of forced labor.

VOA: special.2009.06.08

More than six hundred fifty million people have visited the Mall of America since it opened eighteen years ago.

VOA: special.2010.08.13

The events this year could cost more than the record 42 million dollars spent 4 years ago.

VOA: special.2009.01.19

The Ford Foundation started the program eight years ago with two hundred eighty million dollars.

VOA: special.2009.09.24

In March,the court fined a former Herms saleswoman $7.5 million (U.S.) for selling fake crocodile-skin bags, several years ago.

VOA: standard.2009.04.23