求翻译：60年代后美国又在越南战争中失败,那种挫败感波及了美国社会的很多方面,包括一些文学风格、流派的产生和发展等。而黑色幽默就是这个时候产生并在70一80年代得到发展的。是什么意思？

After the 1960s, the United States has failed in the Vietnam War , the kind of frustration spread to many aspects of American society , including some literary style , genre, generation and development.

60 in the United States, and in the Vietnam War, failed, and the sense of frustration felt by the Society of the United States in many aspects, including some literary style, genre and development, and so on. The black humor that is generated when the 70,180 s development.

正在翻译，请等待...

After the 60 United States and Viet Nam war failed, the kind of frustration felt across the United States in many aspects of society, including the emergence and development of literary styles, genres, and so on. And black humor is generated this time and develop 70,180.

正在翻译，请等待...