lost generation的名词解释 精简一些的. 最好一句话概括的...用英语概括的.

The "Lost Generation" is a term used to refer to the generation,actually a cohort,that came of age during World War I.The term was popularized by Ernest Hemingway who used it as one of two contrasting epigraphs for his novel,The Sun Also Rises.
Variously,the term is used for the period from the end of World War I to the beginning of the Great Depression,though in the United States it is used for the generation of young people who came of age during and shortly after World War I,alternatively known as the World War I generation.