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2019.12.9大A班侯忠宪小朋友—比较高矮1

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amy
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Published on 09 Dec 2019 / In Education environment

2019.12.9大A班侯忠宪小朋友—比较高矮1

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刘
6 years ago

宝贝很不错,能通过目测比较高矮,说明已经感知到了高矮的相对性了。^_^

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