LONDON, June 18 (Xinhua) -- Britons won't be boarding their second high-speed railway -- High Speed 2 (HS2) -- before the 2030s, as the government confirmed on Wednesday that construction has been del ...

点击蓝字关注我们卡内基国际和平基金会前言本报告于6月17日发表在卡内基国际和平基金会，原标题为《How Some of China’s Top AI Thinkers Built Their Own AI Safety ...

Leaders met for the final day of the summit in Kananaskis in Canada's province of Alberta without U.S. President Donald Trump, who suddenly left Canada on Monday night, saying that escalations in the ...