这如何解释:
The national meteorological administration said China is seeing dropping temperatures partly because of south-moving polar cold fronts, caused by melting polar ice from global warming. It said the air is moist and likely to dump heavy snow in China, Europe and North America.
这又怎么解释:
China is experiencing unusual chills this winter with its national average temperature hitting the lowest in 28 years, and snow and ice have closed highways, canceled flights, stranded tourists and knocked out power in several provinces.
China Meteorological Administration on Friday said the national average was -3.8 degrees Celsius (25 degrees Fahrenheit) since late November, the coldest in nearly three decades.
The average temperature in northeast China dipped to -15.3 degrees C (4.5 degrees F), the coldest in 43 years, and dropped to a 42-year low of -7.4 degrees C (18.7 degrees F) in northern China.
中国新鲜,那么大个国家,来个什么the national average。