Karkaroff hovered behind Snape's desk for the rest of the double period.

在那两节课剩下来的时间里，卡卡洛夫一直在斯内普的讲台后面徘徊。

The one good thing to be said for this lesson was that it was not a double period.

这门课倒是有一个好处，它不是连上两节。

Karkaroff hovered behind Snape's desk for the rest of the double period. He seemed intent on preventing Snape from slipping away at the end of class.

在那两节课剩下来的时间里，卡卡洛夫一直在斯内普的讲台后面徘徊。他似乎决意不让斯内普下课后溜走。