中流

Some of the members of the middle class have fallen into poverty

That party is always pandering to the middle class

Her income barely maintained her in the lower middle class

He comes from the middle class

The typical middle-class American baby comes home from the hospital to sleep in his own bed in his own room

However, like America, Japan is predominantly a middle-class, middle-income country, and so wives do not employ maids, but attend to everything themselves