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上节科学课结束时,李老师给大家布置了一道回家作业:设计一个会产生喷泉的有趣实验。今天,可是大家交流成果的时间哦!
At the end of the previous science class, Teacher Li arranged a homework assignment for everyone: Designing a fun experiment that would produce a fountain. Today, but we share the results of the time oh!