Americans trace their origins from many different countries that there is a wide range of "acceptable" social customs in America. 美國人原是來(lái)自許多不同的國家,所以美國有各種不同的“可接受的”社會(huì )習俗。
Social customs vary greatly from country to country. 國與國之間的社會(huì )習俗有很大差異。