Class hour spent an in part, xiao ming came.
课时过了一半, 小明来了.
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To on physical class hour came unexpectedly a very brilliant male teacher.
到上物理课时居然来了位非常英俊的男老师.
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The upper class hour teacher invites schoolmates reading the upper figure of blackboard.
上课时老师请同学们读黑板上的数字.
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