A robot serves dishes at a restaurant in Xuchang, Central China's Henan province, Jan 11, 2015. The robot, worth $13,000, has been put into use to serve customers at the restaurant for ten days. [Photo/Xinhua]
Restaurant owners all share the same headaches-customers complaining about errors made by waiters in taking their orders, slow service because the waiters are too busy, and the high cost of hiring staff.
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