cultural 

1.What is a cultural relic is?

2.Cutural relics are always rare and vuluable.

relic 

1.This stone axe is a relic of ancient times.

2.This ruined bridge is a relic of the war in 1950.

ivory 

1.It is carved from ivory.

2.My grandmother has some jewelry made of ivory.

dragon 

1.This is a dragon boat.

2.The landscape of the Great Wall is like a dragon.

amber 

1.The traffic lights were on amber.   

2.Would you like an amber necklace for your birthday?

mystery 

1.It is a mystery.       

2.It was a place of deep mystery.  

rebuild 

1.The company is making every effort to rebuild its business.

2.It's out of the question to rebuild the towers.

eyewitness 

1.The police questioned several eyewitnesses.

2.The driver's version of the accident was different from the eyewitness.