Feedback can include homework such as learning activities or exercises to help you practice at home what you spoke about in the session that day.

反馈可以包括诸如学习活动或练习，以帮助你在家里你在会议发言中对当天的实践作业。

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About two hours and 3,000 playbacks later, the students were able to correctly identify 80 % of the heart sounds on a test—up from 30 % before the practice listening session.

在两个小时中，他们反复听了3000遍，之后他们就可以在测试中准确地分辨出80％的心脏跳动声，相比听力练习前提高了30％。

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