They say that the causeway formed 50 to 60 million years ago when molten rock was forced up through fissures in chalk beds, forming a plateau of lava.
他们认为堤道形成于5至6千万年前,是由白垩层的岩石裂缝中喷涌而出的岩浆形成的熔岩高原。
单词 | bed forms |
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原声例句
少儿畅学课堂 They say that the causeway formed 50 to 60 million years ago when molten rock was forced up through fissures in chalk beds, forming a plateau of lava. 他们认为堤道形成于5至6千万年前,是由白垩层的岩石裂缝中喷涌而出的岩浆形成的熔岩高原。 |
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