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"Every Friday, I come to the Chinese corner, and they have presentations about different topics of China, like Chinese food, Chinese wedding habits, Chinese music and so on," he said. "The more you know about the culture, the better you understand people."

"During the research, for instance, I found a resident who was having a lot of trouble, as she has a serious disease and her husband had passed away," Wang said.

"Education is the answer to this problem. The march of technology is inevitable and we have to move forward because there is no alternative," he said.

"Facts have shown that China's development is conducive to world peace. As China's military grows stronger, it is bound to make greater contribution to world peace," Liu said.

"Even if my works change the mindset of only a couple of people, my efforts are worthwhile," he said.