The mountain ranges rise and fall.
山峦起伏。
Name two mountain ranges in Canada.
请写出加拿大的两大山脉。
Mountain glaciers are found in all parts of the world where mountain ranges are high.
世界各地凡山脉高耸的地方都有山岳冰川。
Mountain glaciers are found in all parts of the world where mountain ranges are high.
世界各地凡山脉高耸的地方都有山岳冰川。
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