One of her favourite subjects at school is Arithmancy.
她最喜欢的学科之一就是算数占卜学。
2
She hitched up the long roll of parchment on which she was writing her Arithmancy essay and continued to scratch away with her quill.
她把那卷长长的羊皮纸朝上拉了拉，刷刷地接着写她那篇算术占卜课论文。
3
Arithmancy class at Hogwarts is taught by Professor Vector. In her class, students are expected to write essays and to create and be able to understand complicated number charts (PA12).