学生们在客座教授的讲座中安静端坐，专注地做笔记。
The students sat in decorous silence during the guest professor's lecture, taking notes attentively.
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解释
decorous 在此指在正式学术场合中符合礼仪的端正举止。
The students sat in decorous silence during the guest professor's lecture, taking notes attentively.
decorous 在此指在正式学术场合中符合礼仪的端正举止。