No doubt he was hoping for an excuse to take a round fifty points from Gryffindor before the end of the class.

不用说，他是想找借口赶在下课前扣掉格兰芬多五十多分。

The several subordinate groups in any class cannot be ranked in a single file, but seem clustered round points, and these round other points, and so on in almost endless cycles.

任何类别中的几个下属组都不能排在一个文件中， 而是聚集在一起的圆点， 这些点又围绕着其他点， 如此循环往复。

Harry didn't answer. He knew Snape was trying to provoke him; he had done this before. No doubt he was hoping for an excuse to take a round fifty points from Gryffindor before the end of the class.

哈利没有回答。他知道斯内普是想挑逗他、激怒他，斯内普以前就这么做过。不用说，他是想找借口赶在下课前扣掉格兰芬多五十多分。