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US Climate
美国气候
The United States is one of the biggest countries in the world.
美国是世界上面积最大的国家之一，
It has all sorts of geography,from deserts to beaches, mountains to flatlands.
拥有沙漠，沙滩，山地和平地等各种地理风貌。
These conditions help create all sorts of weather:
这些地理状况导致了各种天气情况的出现:
mild, moderate and extreme.
温和的，适中的和极端的。
In the summer, some areas get very hot and the air is very wet.
夏天，有些地区十分炎热，湿气重；
But others have dry air, so the heat does not feel so bad.
而有些地区湿度低，热起来不会觉得很不舒服。
In the winter, parts of the country get cold and snowy while others stay warm and sunny.
到了冬天，部分地区天气寒冷，雪花纷飞，而另外一些地区仍然晴朗暖和。
This is the difference between, for example,the East Coast and the West Coast.
这就是东西海岸天气的差别。
The oceans affect weather along the coasts.
海洋影响着沿海地区的天气。
The Pacific coast has smaller temperature changes and calmer conditions than along the Atlantic.
与大西洋海岸相比，太平洋沿岸的温差小，天气较稳定。
Hurricanes are ocean storms that strike mainly in the Southeast.
飓风是一种海洋风暴，主要袭击东南亚地区。
The hurricane season is, officially, June through November.
飓风季从6月一直持续到11月。
Tornadoes are a risk across the country.
龙卷风是一种对整个美国危害都很严重的风暴，
These are locally severe windstorms in the spring and summer.
常发生在春夏。
