在半岛北部，海拔足够低，因此古玛雅人能够经由被称为竖井的深层排水口或深洞探及地下水位。

In the northern peninsula the elevation is sufficiently low that the ancient Maya were able to reach the water table at deep sinkholes called cenotes, or at deep caves.

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普通话是生活在中国北部及四川省的中国人的母语。

Putonghua is the mother dialect of Chinese living in northern China and Sichuan Province.

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11月30日，造成了苏格兰及英格兰北部大量混乱严寒的天气和大雪开始南移到首都。

Freezing weather conditions and snow that has created chaos in Scotland and Northern England are moving South to the capital. Getty Images / Matthew Lloyd

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