Censors did government jobs.
Acupuncture is sticking needles into your foot.
Civil service is where the government talented people
Tenant farmers worked for other people.
For help of your brain, you were supposed to put a needle in your big toe.
The tribes of the north were the 匈奴.
Generations are sons and daughters.
A network is a connected system.
Water wheels move with water to generate power.
A link is a connecting factor.