The Turkish Prime Minister Recep Tayyip Erdogan has said that it was his duty to order a crackdown on protesters in Gezi Park. __________________________Addressing tens of thousands of supporters in Istanbul, Mr Erdogan dismissed allegations he was behaving like a dictator. Riot police used water cannon and tear gas throughout the day to disperse protesters in other districts of Istanbul and in the capital Ankara. Chris Morris is in Istanbul. 土耳其总理雷杰普?塔伊普?埃尔多安表示,他有责任下令对格兹公园的示威者们进行镇压。_____________________埃尔多安在伊斯坦布尔向成千上万支持者讲话,否认有关他是独裁者的指控。防暴警察全天动用水炮和催泪瓦斯来驱散首都安卡拉及伊斯坦布尔其他地区的示威者。克里斯?莫里斯在伊斯坦布尔报道。