China expresses `` strong dissatisfaction '' with a U.S. statement on the June 4 anniversary . It 's been 23 years since Chinese soldiers opened fire on pro-democracy campaigners . U.S. encouraged China to release those serving prisons sentences over the protest . Some users were said to be trying to evade government censors by referring to `` May 35th . '' Title: Why do we have so many different types of teeth?
China expresses `` strong dissatisfaction '' with a U.S. statement on the June 4 anniversary . It 's been 23 years since Chinese soldiers opened fire on pro-democracy campaigners . U.S. encouraged China to release those serving prisons sentences over the protest . Title: Why do we have so many different types of teeth?