Apple CEO Tim Cook takes the stage during Apple's Worldwide Developer Conference (WWDC) at the San Jose Convention Center in San Jose, California, the United States, June 4, 2018. (Xinhua)
A participant takes photos during Apple's Worldwide Developer Conference (WWDC) at the San Jose Convention Center in San Jose, California, the United States, June 4, 2018. (Xinhua)
Apple CEO Tim Cook takes the stage during Apple's Worldwide Developer Conference (WWDC) at the San Jose Convention Center in San Jose, California, the United States, June 4, 2018. (Xinhua)
The Apple's Worldwide Developer Conference (WWDC) is held at the San Jose Convention Center in San Jose, California, the United States, June 4, 2018. (Xinhua)
The Apple's Worldwide Developer Conference (WWDC) is held at the San Jose Convention Center in San Jose, California, the United States, June 4, 2018. (Photo/Xinhua)