American English
In 1806, Noah Webster published his first Dictionary of American English. This not only had American words and expressions, but also introduced a new, simplified spelling which is still in use. In the 19th century, American English spread with the expansion of the United States. After 1848, it was also influenced by massive immigration from Germany, Central Europe and Italy, which brought large numbers of new words into the language. In the 20th century, American English began to influence the rest of the world, first through Hollywood films and then through television.
Canadian English
Canadian English started when British loyalists moved north into Canada in 1782, near the end of the American War of Independence. To British people, Canadian English sounds similar to American, but to Americans is sounds slightly British! Canadians use many Americans Canadians use many American words like "truck" for "lorry" and "gas" for "petrol".
v. 伸展,展开,传播,散布,铺开,涂撒
n.