According to the giant-impact hypothesis, the Moon was created during a collision between Earth and a large object about the size of Mars.
根据“巨型撞击假说”，月球是在地球和一个火星大小的物体相撞时形成的。
This observation from NASA's Mars Reconnaissance Orbiter shows the floor of a large impact crater in the southern highlands, north of the giant Hellas impact basin.
这幅来自NASA火星轨道观察器的图像显示了位于火星南方高地巨大的Hellas撞击盆地北侧地表上的一个大撞击坑。
But according to David Jolley of King's College in Abaerdeen, U.K. and a team of researchers, Bolytsh slammed into the planet less than 5, 000 years before the giant Chicxulub impact in Mexico.
不过，据英国阿伯丁皇家学院大卫•乔利和一个研究小组认为，乌克兰博提施撞击地球事件比之前的墨西哥希克苏鲁伯撞击事件要晚5,000年。
The prevailing hypothesis is that the moon was formed from a giant impact event, when a Mars-sized object slammed into Earth.
主流的理论假设认为，月球是大爆炸时期一火星大小的物体猛烈撞击地球而形成的。
"If the whole moon has the amount of water equivalent to what we analysed, then the giant impact theory is in a little trouble, " says Saal.
如果整个月球的水含量都与我们的测量结果相近，那么月球大碰撞说会有些小麻烦。
The idea that the giant reptiles met their demise because of a gigantic meteorite impact off the Yucatan coast of Mexico has become one of the most widely accepted in science.
科学界中，普遍接受的观点认为，大型爬行动物的灭绝是由巨型陨石对墨西哥尤卡坦海岸的冲击引起的。
The vast blue ocean, a wave coming, the impact on the rock, a giant earthquakes and landslides roar, with white foam spray.
浩瀚无边的湛蓝的海洋，一道道波浪不断涌来，撞击在岩石上，发出了天崩地裂的吼声，喷溅着雪白的泡沫。
The United States now recognizes China's increasing impact and wishes to tackle global issues with the help of the Asian giant, a major shift from its earlier containment policy.
美国现在已经意识到中国与日俱增的影响力，并且希望在解决世界问题时得到中国的帮助，这和美国早先对华的遏制政策相比是一个很大的转变。
The United States now recognizes China's increasing impact and wishes to tackle global issues with the help of the Asian giant, a major shift from its earlier containment policy.
美国现在已经意识到中国与日俱增的影响力，并且希望在解决世界问题时得到中国的帮助，这和美国早先对华的遏制政策相比是一个很大的转变。
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