Teacher and student support each other
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16:14
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06:10
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21:48
07:53
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07:00
10:03
05:24
28:37
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16:41
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10:34
14:57
28:44
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28:37
34:40
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19:34
08:03
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07:32
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12:00
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10:36
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06:15
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10:14
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13:10
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06:09
08:00
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05:41
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16:07
06:53
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05:10
12:22
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06:58
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