middle stratum的用法和樣例：
例句
- The special status of the middle class in the social structure determines their eclectic values.
中間階層是社會(huì )利益結構中的緩沖層。 - When the social structure has undergone a period of annexing, the middle class in our country is coming into shape gradually while developing quickly.
在社會(huì )分層結構進(jìn)一步分化整合之時(shí)，我國的中間階層也正醞釀成形，并逐步發(fā)展壯大。
