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Apple's Worldwide Developers Conference in San Francisco

Updated: 2014-06-03 07:55 (chinadaily.com.cn)
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Apple's Worldwide Developers Conference in San Francisco

Apple vice president of software engineering Craig Federighi demonstrates the new Yosemite operating system at the World Wide developers conference in San Francisco, California June 2, 2014. [Photo/Agencies]

Apple's Worldwide Developers Conference in San Francisco
Apple's Worldwide Developers Conference in San Francisco
Apple's Worldwide Developers Conference in San Francisco

Samsung unveils smartwatch ahead of rival Apple

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