Complex sentence: In 1980, he and his partner Wang Qifeng (汪齐风) participated in the International Ballet Competition in Japan, where they made history by winning the first gold medal in an international competition for China.
Split into simpler sentences: In 1980, he and his partner Ms. Wang Qifeng went to the International Ballet Competition in Japan. He and his partner made history by winning the first gold medal in an international competition for China.