生存阈值
基于1个网页-相关网页
threshold for survival and extinction 生存阈值
·2,447,543篇论文数据，部分数据来源于NoteExpress
This group of people has passed the threshold of survival and does not need to worry about the basics such as food and clothing, and it has some disposable income to buy discretionary goods and services.
FORBES: Defining the Chinese Middle Class
应用推荐
模块上移
模块下移
不移动