- 问题详情: StudentsinAmericanschoolslearnfromanearlyagetogivepresentations(演讲)aspartoftheirregularclassroomactivities.Childrenasyoungasfiveyearsoldoftengivebrieftalksaboutobjectstheybringintoschool–called“showandtell,”andthistrainingisabasisforla...
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