今天下午我遭遇了一件不愉快的事，我丢失了书包。
An unpleasant thing happened to me this afternoon. I have lost my schoolbag.
刘明星期二在学校操场丢失了他的书包：蓝色，里面有几本书和一个铅笔盒。
Liu Ming lost his bag on the playground on Tuesday. It? S blue. There are some books and a pencil-box in it.
刘明星期二在学校操场丢失了他的书包：蓝色，里面有几本书和一个铅笔盒。
Liu Ming lost his bag on the playground on Tuesday. It's blue. There are some books and a pencil-box in it.
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