You've got to attend class and pay attention while in class.

你得去上课，而且得上课时得留心听讲。

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Try to pay attention to many details while having a class in class.

试着关注许多细节而上课上课。

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Try to pay attention to many details while having a class in class.

试着关注许多细节而上课上课。

youdao