地球的力量

They mark out the rim of a giant crater.
它们标志着一个巨大陨坑的边缘
Scientific instruments show the structure of the underlying rock has been deformed,
科学仪器显示 下面岩石的结构被扭曲了

revealing the boundaries of a colossal meteorite impact crater.
让人看到了一个巨大陨石撞击形成的坑的边缘
This amazing cavern is part of a bigger story,a much bigger story.
这个不可思议的沼坑背后是个更震惊的故事 非常让人震惊
Sixty-five million years ago, this was the site
6千5百万年前，就在这里
of one of the most catastrophic impacts in Earth's history.
发生了地球上最具毁灭性的撞击
What became known as the Chicxulub meteorite landed here
一个被称作是希克苏鲁伯的陨石掉到了这里
and that triggered the extinction of the dinosaurs.
导致了恐龙的灭绝
The meteorite was likely over nine miles across,
陨星直径15公里
enough to cause utter devastation across the whole planet.
足够导致整个星球的毁灭
It exploded with the force of one hundred million million tons of TNT.
它的爆炸力相当于一亿兆吨炸药爆炸
The blast sent a giant plume of vaporised rock out into space.
这次爆炸导致巨大的岩石蒸发进入外太空
A crater was punched half a mile into the Earth's crust.
地壳上产生了30公里深的陨坑

重点讲解

1、trigger
引爆;启动;触发
The thieves must have deliberately triggered the alarm and hidden inside the house.
盗贼肯定是故意触发了报警器，然后躲在房子里。
The one thousand pound bomb was triggered by a wire.
那颗重达 1,000 磅的炸弹是由一根导线引爆的。
引起;发动;促使
the incident which triggered the outbreak of the First World War.
导致第一次世界大战爆发的事件
The current recession was triggered by a slump in consumer spending
目前的经济衰退是由消费支出骤跌引起的。
诱因;起因;引发…的原因
Stress may act as a trigger for these illnesses.
压力可能会成为引发这些疾病的原因。
2、impact
影响;作用
They say they expect the meeting to have a marked impact on the future of the country.
他们称他们预期会议对国家的未来会产生显著影响。
The major impact of this epidemic worldwide is yet to come.
这种传染病在世界范围内的重大影响还未完全显现。
撞击;碰撞;撞击力
The plane is destroyed, a complete wreck: the pilot must have died on impact.
飞机遭到毁坏,完全成了一堆残骸：飞行员肯定死于撞击。
A running track should be capable of absorbing the impact of a runner's foot landing on it.
跑道应该能够吸收奔跑者踩踏地面时产生的撞击力。
(对…)产生影响
Such schemes mean little unless they impact on people.
这些计划没什么意义,除非它们对人民产生影响。
That, in turn would increase pressure for higher wages and that, in turn, would impact on inflation and competition.
那样就会增加工资上涨的压力,而那样又会对通货膨胀和竞争产生影响。