书面表达。
假如你是一位导游，根据下面的内容和提示，写一篇100 词左右的口头通知，以便向
旅行团成员宣布。
事由：参观长城；
参观时间：今天下午2:00- 5:00 ；
参观人数：约50 人。
活动安排：1. 2:00 在旅馆门口出发乘车；
2 ．车停靠山脚下，三小时后集合；
3. 5:00 在山脚下乘车返回旅馆；
4 ．不明白的问题可以询问；
注意事项：
1 ．参观长城时，贵重物品随身携带；
2 ．文明旅游。
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One possible version:
Ladies and gentlemen,
Listen, please. This afternoon we re going to visit the Great Wall,
the bus will stop at the foot of the Great Wall. Three hours later, we'll
get together here and back to the hotel. When you go to visit the Great
Wall, please take your valuable things with you. And remember to come
back to the bus at five o'clock. Do be there on time. In addition, you
should keep your waste things and not to throw anywhere.
Does everyone understand?
Thank you.