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求告知这段话的重点语法、短语,以及需要掌握的要点知识Chineseusedtocuponehandintheotherbeforethechestasasalute.Andbowing,toconveyrespecttothehigherlevel,wasoftenusedbysubordinates,studentsandattendants.B

题目详情
求告知这段话的重点语法、短语,以及需要掌握的要点知识
Chinese used to cup one hand in the other before the
chest as a salute.And bowing,to convey respect to the higher level,was often
used by subordinates,students and attendants.But Chinese don't do that nowadays
except in the Spring Festival
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答案和解析
used to do 过去常常做某事···