A2_13 UNIT 9

ancient

very old; of a long time ago

temple

place of worship consisting of an edifice for the worship of a deity

challenging

difficult in an interesting or enjoyable way

exchange

people giving up something in order to receive something else they would rather have

set off

to start a journey

beyond

at or to the further side of.

opportunities

chances to do something

trade

the action of buying and selling goods and services.

silk

a valuable cloth, originally made only in China from threads spun by caterpillars called silkworms

published

something that is written and distributed