族群兴衰过程的英文

• population process

• 族:    clan
• 群:    crowd; group
• 兴衰:    rise and decline; vicissitud ...
• 过程:    process; procedure; transver ...
• 兴衰:    rise and decline; vicissitude 罗马帝国的兴衰 the rise and decline of the roman empire; 这个城市经历了多次兴衰。 the city has been through many vicissitudes