But again, attending to the slides is not a substitute for attending class.
但我要强调，看课件绝对不可能替代上课。
Is attending class regularly and punctually a necessary or sufficient condition for being successful in class?
按时按点上课，对学好这门课而言，是必要条件还是充分条件？
You must notify me as soon as possible when a real and serious emergency keeps you from attending class.
若因真正严重的紧急情况而无法出席，请尽早通知我；
Someone said we should think much of the chance of attending class as it will end soon, so that we will not repentant when we leave school.
有人说，像现在这样有课上的日子已经不多了，所以我们得十分珍惜每一次上课的机会，免得将来想上课却没得上时后悔。
Someone said we should think much of the chance of attending class as it will end soon, so that we will not repentant when we leave school.
有人说，像现在这样有课上的日子已经不多了，所以我们得十分珍惜每一次上课的机会，免得将来想上课却没得上时后悔。
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