求翻译：大约在1830年前后,密西西比河流域出现了专事赌博的内河船,以及一些专门从事赌博的专业赌徒,赌博之风南下到新奥尔良，最后新奥尔良成为了美国赌博的中心城市。但是看来赌博活动与生俱来地会滋生犯罪，因赌博产生的社会丑恶现象让人们不再以宽容态度看待赌博，加上接二连三的彩票丑闻，禁赌呼声四起。最后许多州都开始立法禁止赌博，或是禁止指定方式或指定区域的赌博活动。是什么意思？

About 1830 years ago, the Mississippi Valley, specializes in gambling river boat, as well as specializing in the gambling professional gambler, gambling, the wind south to New Orleans, New Orleans has become a central city of the U.S. gambling. But it seems that the gambling activities inherent to b

In about 1830, before and after the Mississippi River basin for betting the river trade, as well as specializing in a number of professional gamblers, gambling, and gambling in the south, New Orleans New Orleans in the United States as a gambling center of the city. But it seems that gambling activi

In about 1830, there have been specializing in gambling River boat in the Mississippi River basin, as well as some professional gambler specializing in gambling, gambling style in South to New Orleans, became the last New Orleans United States gambling center of the city. But gambling and born to br