Zhang Dejing, right, adjusts her cuffs while preparing for a day of butler duties with her classmates at a conference center in Beijing, Sept 25, 2015. Zhang graduated from the International Butler Academy, the world's leading butler service training institute. The academy's tuition is 11,000 pounds ($16,902). After eight weeks of training, a graduate's average annual income will be 30,000 to 90,000 pounds, the school said.[Photo/IC]
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