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翰林國小自然6下2-3
影音
6下目次
CH1
1-1
1-2
1-3
CH2
2-1
2-2
2-3
2-4
CH3
3-1
3-2
3-3
3-4
P37【生活裡的科學】一步登天的電梯
24'00
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