translation.en: She saw right away that the additional tiles that you had to add around the edges was always going to grow by two, so she was very confident about how she made those numbers there.
translation.zh: 她马上就发现 所需的额外纸片数量总是以2为基准增加 到了边缘的时候就肯定是以2为基数增加 她对此非常自信