北京国家体育场“鸟巢”悬挂巨幅禁烟标志。被称为“最严禁烟令”的《北京市控制吸烟条例》将于6月1日起实施。
Dancers perform in front of anti-smoking banners displayed on the iconic Bird's Nest National Stadium on World No Tobacco Day in Beijing, capital of China, May 31, 2015. Beijing plans to introduce new regulations on June 1 requiring all indoor public places - and many outdoor public places - to be 100% smoke-free. The legislation is seen as the most rigorous anti-smoking law in China's history. (Xinhua/Shen Bohan)