特茹河和Algarve之间的南方地区以起伏的平原为特征，相比北部寒冷多雨的气候，那里相对更暖和干燥。
The south between the Tejo and the Algarve features mostly rolling plains with a climate somewhat warmer and drier than the cooler and Rainier north.
在地球上，北极的极地涡流主要集中在北美洲东部的加拿大，将寒冷的北极空气卷入美国北部平原。
On Earth, the arctic Polar Vortex is typically located over eastern north America in Canada and plunges cold arctic air to the northern Plains in the United States.
中部平原是大陆性气候，季节差异悬殊，夏天灼热，冬天(大雪)寒冷。
The central plains have a continental climate with sharp seasonal contrast: torrid summers, very cold winters (heavy snow).
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