事实上没有人要求他们在开学的第一天去干什么。当他们看到教室里乱七八糟时，便自发地打扫起来。
Actually nobody asked them to do anything on the first day of school. When they saw the classroominsuch a mess, they cleaned it spontaneously.
他站起来，跑到一个邻居的家里，向邻居提供服务，帮邻居打扫他房子周围的小路。
He rose, ran to the house of a neighbor, and offered his service to dear a path around his house.
打扫房屋前， 她用一块大手帕把头发扎了起来。
Before sweeping the house, she bound up her hair in a large handkerchief.
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