great rift

基本解释

Nyiragongo is in the Great Rift Valley, where the African continental plate is being wrenched apart, and microquakes constantly shake the volcano.
尼拉贡戈火山位于东非大裂谷，非洲大陆板块在此被扭曲变形，小型地震频繁晃动着火山。
Everything east of the Great Rift Valley--a 6000-kilometer gash that runs from Syria to Mozambique--is imperceptibly moving into the Indian Ocean.
东非大裂谷（北起叙利亚，南至莫桑比克，全长6000公里）以东的部分，正在神不知鬼不觉地遁入印度洋。
The Great Rift of the Summer Milky Way splits the constellation.
夏季银河系的巨大裂缝将它们分开了。

Also a nearby volcano erupted four years ago,ripping open a crack in the Great Rift Valley.
Then next to that north-south central hill country, you've got also running north to south, what we call the Great Jordan Rift Valley It goes the entire length of the country And the Jordan River runs through this valley.
靠近这个中心分布着南北走向山丘的国家，你看到,南北走向山谷，被称作约旦大裂谷,它贯穿整个国家的南北,约旦河流过这条裂谷。
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Yes,you can see horns." These 500 to 1000-year-old cave paintings are young compared to the skeleton of Ardi, an upright hominid more than four million years old discovered in Ethiopia's Great Rift Valley .

It is specific to the part of East Africa around the Great Rift Valley (hence the name).
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