a multi-ethnic society的用法和样例：
- He rules a multi ethnic empire that is scientifically, economically and militarily surpassing any other country. (check).
- The US is a multi racial nation.
- It can be considered a multi stage carburizing.
- On this base, the Han ethnic society in the watershed of Huangshui river gradually formed grass-roots social structure that Bao and Zhai as main form, and was followed till now.
- Deisler then joined Bayern Munich in a multi million deal.