然而第二天上课之前教授听说了她们的计划，所以他策划了一番。
The professor, however, got wind of their scheme just before class the following day, so he bided his time.
安德森则利用这几分钟用两三句话总结出这堂课的重点，在第二天上课前把总结略读一遍。
Anderson USES those few minutes to write a two - or three-sentence summary of the lesson's principal points, which she scans before the next day's class.
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