大家在查： natural landscape polar circle Kalaallit Nunaat South Shetland Islands South Orkney Islands polar maritime air mass brown soil Western United States downward flow 30 degrees north latitude

Northern America

Northern America

Asia-Temperate - 豆丁网 ... Pacific 太平洋 7 Northern America 北美洲 8 Southern America 南美洲 9 ...

北美地区（Northern America）为地缘政治地理学的概念，指的是美洲的最北部地区，属于北美洲大陆的一部分，与北美洲有明 …

north 和northern的区别_听海_新浪博客 ... North America 北美洲 Northern America 美国北部 east easthern 东 ...

Tyrannosaurs where the largest land - living, meat-eating animals that ever lived . They were found in Asia and Northern America .

Northern America has forests that include California 's sequoia's, the earth's largest trees .

An Incident That Touching off the War between Northern America and Britain