n.[U][theS]

1. 無產階級；勞工階級
   He is not one of the proletariat.

   他不是無產階級的一員。

2. （古羅馬社會中的）底層階級
3. 【罕】社會的底層階級

n.

1. workers or working-class people (often used with reference to Marxism).
2. the lowest class of citizens in ancient Rome.