An athlete competes during the 2015 Air & Style Snowboard eventat the Beijing National Stadium, known as Bird's Nest, in Beijing, capital of China, Dec. 5, 2015. (CNS photo/ Liaopan)
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An athlete competes during the 2015 Air & Style Snowboard eventat the Beijing National Stadium, known as Bird's Nest, in Beijing, capital of China, Dec. 5, 2015. (CNS photo/ Liaopan)
