Here are some nice photos and definitions for you
Censor: A person who's job was to make sure government workers did their jobs.
Currency: A type of money that that country or region uses to buy goods and services.
Civil Service: Goverment workers who were chosen on the basis of competitive testing and quizzing.
Tenant Farmers: Farmers that work on land that is owned by a landlord or other person's property.
Acupuncture: A medical way to relieve pain by puncturing a patient's skin at a certain point on the body.