They studied a once-massive star that went supernova about 100000 years ago.

1、

Excavation and study on the Lishui Cave, Jiangsu

江苏溧水神仙洞的发掘和研究&中华文明史应追溯到万年前

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2、

Then the environment changed some 10000 years ago,

然而大约1万年前，社会发生了变化

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3、

He that died half a year ago is as dead as Adam.

半年前死的人和万年前死的人都是死人。

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4、

Some prehistoric people tried living there starting about 20000 years ago.

大约2万年前起史前人就试图在这片土地上居住。

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5、

The last Neanderthals appear to have died about 40000 years ago.

最后一代尼安德特人似乎在大约4万年前灭亡。

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6、

They evolved over 4.4 million years ago among our first ancestors,

这些大脑系统早在440万年前就从人类最早的祖先中演化而来，

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7、

About 150000 years ago, when language came online,

大概15万年前，语言开始形成

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8、

Just 5 00000 years ago Britain was joined to northern France.

就在50万年前，英国还与法国北部相连。

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9、

The most recent reversal was about 700,000 years ago.

最近的一次倒转发生在大约70万年前。

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10、

I imagined some stories that happened long long ago.

我想象着千年万年前的故事。

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11、

We have no idea what was happening 50000 years ago.

我们并不知道5万年前发生了什么。

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12、

The American Indians came from Asia about 40000 years ago!

美国印第安人大约从4万年前来自亚洲！

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13、

A hundred millennia ago, different islands dotted the coast.

在10万年前，海岸附近是另一批岛屿。

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14、

Dr Manabu Sakamoto, a palaeontologist from the University of Reading, who led the research, said: "We were not expecting this result. Even though they were wiped out ultimately by the impact of the asteroid, they were actually already on their way out around 50 million years before the asteroid hit."

英国雷丁大学古生物学家Manabu Sakamoto博士主导这项研究，他说：“我们没料到是这样的结果。尽管恐龙是由于小行星撞地球而灭绝，但在这之前，即距今约5000万年前，恐龙已经开始走向衰落。”

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15、

The world of 100000 years ago might have looked a lot like our own. 9 We live in an era of rapid, pulsating glaciations, but for 10000 years our climate has been stable10 and warm.

10万年前的世界看起来可能和现在的世界更加相像。10a我们生活的时代里充满了快速交替的冰期，但在过去的1万年里，我们的气候一直保持稳定11和温暖。

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16、

The new assessment adds further fuel to a debate on how dinosaurs were doing when a 10km-wide space rock slammed into Earth 66 million years ago.

在人们争论恐龙究竟在6600万年前那个10km宽的太空陨石撞击地球时做什么的时候，这项新的评估无疑为这场争论火上浇油。

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17、

Mice separated from humans only 70 million years ago, but scientists feel that kangaroos can provide more answers about human evolution when it comes to why some DNA remained the same for eons while other DNA changed.

尽管鼠类和人类分离只发生在7000万年前，但科学家认为当谈到为什么亿万年来，一些DNA保持不变而其他DNA会改变等人类进化问题时，袋鼠可以提供更多的答案。

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18、

Well, even 200,000 years ago, too much risk-taking could get one killed ．

好吧,即使在20万年前,太多的冒险都能导致人死亡。

高考真题- 2016 北京七选五

19、

Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primordial forest

2,000万年前，爱达荷州并不像现在这样干旱。相反，那时的爱达荷州温暖潮湿，有大片的原始森林。

柯林斯高阶英汉双解学习词典

20、

The liquid could be used in New type liquor flavoring with its use level as about 3/ 10,000, which could evidently increase pit flavor in liquor and improve liquor smell flavor and strengthen liquor harmony.

将黄水调味液用于新型白酒的勾调，用量为3/万左右，可改善闻香，增加窖香，增强新型白酒自然协调感，效果明显。

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