yeolgok
rift valley
vallée de rift ; vallée en rift
열곡은 지구의 지각이 갈라져 형성된 지역입니다.
Yeolgok-eun jigu-ui jigak-i galajyeo hyeongseongdoen jiyeog-imnida.
A rift valley is an area formed by the splitting of the Earth's crust.
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