South Korea's ties with China have become increasingly strained over Beijing's economic retaliation against the South for the deployment of the THAAD anti-missile system. Opposition appears to have taken hold among the Chinese people, too, with a group of tourists refusing to go ashore when their cruise ship arrived at Jeju Island. Lee Unshin reports.

1. What is the meaning of retaliation? 

2. How does the China's retaliation affect the economy of South Korea? 

3. If you were the ruler of your country, what would you do to change the economy?