Tom racked his brains trying to remember the answers to the questions.

汤姆绞尽脑汁想记起问题的答案。

" Can he suspect anything" ? Leon asked himself. His heart beat, and he racked his brain with surmises.

" 难道他猜到什么啦？" 莱昂心里寻思。 他的心跳得厉害了，于是越发胡思乱想。

Night and day he racked his brain to invent fresh attractions.

他日以继夜地绞尽脑汁想发明新的景点。

Julian racked his brains to try and think what the floor of the hollow had been like when Dobby and Trotter pulled their caravans into it.

朱利安绞尽脑汁，试图思考当多比和特罗特把他们的商队拉进去时，空洞的地板是什么样子的。

" No! " said Harry indignantly, racking his brains to think what he could have done that would make Snape pursue him to Grimmauld Place. Had his last piece of homework perhaps earned a 'T'?

“没有！”哈利愤慨地说，一边拼命回想自己有什么过错会让斯内普追到格里奠广场来。莫非上次作业得了个“T”？

" I thought he was! " said Harry, racking his brains to remember when Dumbledore had told him this, but now that he came to think of it, he was unable to recall Dumbledore ever telling him what Slughorn would be teaching.

“我以为是他！”哈利说。他拼命回忆邓布利多什么时候告诉过他，然而，现在仔细想来，他根本记不起邓布利多跟他说过斯拉格霍恩要教哪门课。