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Unit 2 I helped my mother.
第二单元我帮助我的妈妈。
youdao
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The family is the unit of society and the mother is the center of the family.
家庭是社会的单位，而母亲是家庭的中心。
youdao
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The family is the unit of society and the mother is the center of the family.
家庭是社会的单位，而母亲是家庭的中心。
youdao