About English grammar results of 10,000
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13:06
03:43
00:11
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02:32
02:07
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06:33
52:30
07:25
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07:56
02:44
00:11
03:02
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00:34
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07:20
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04:54
05:37
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04:52
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07:36
02:28
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06:37