假如你是一名導游，陪同某外國旅游團游覽長城。車抵長城，下車前你準備對大家作必要的介紹和交代。請擬一份講話稿。講話稿必須包括以下內容：

　　1.簡單介紹長城(世界上最長的城墻，有兩千多年的歷史，是世界奇觀之一);

　　2.在長城逗留兩個半小時，11點離開;

　　3.游覽車在入口處等候，記住車號，準時返回;

　　4.貴重物品隨身攜帶，下車前關上車窗;

　　5.游覽時注意安全，祝大家玩得愉快。

　　注意：不要逐句翻譯，字數100個單詞左右。

　　范文

　　Ladies and gentlemen,

　　Here we are at the foot of the Great Wall. It is the longest wall in the world and has a history of over 2 000 years. It is one of the wonders of the world. We’ll stay here for two hours and a half, that is to say, we’ll leave at 11 o’clock. The bus will be waiting for us at the entrance. Please remember our bus number and be back on time. Besides, please take your valuable things with you and shut all the windows before you get off. Be careful while you are on the Great Wall.

　　Have a good time!

　　The Seaside Swimming Pool

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