1.
a person who buys and sells things
2.
China started trading with _____ countries around 130 BC.
3.
a system of roads, lines, tubes, nerves, etc. that are connected to each other and operate together
4.
The ancient Greek word for China is _____.
5.
something expensive that is pleasant to have but is not necessary
6.
In addition to silk, the trade route helped spread important inventions like making ____ from China to other places.
