every month.
I look at my bank statements month by month, and I can tell you to the penny how much we spend.
Related vocabulary: day by day, week by week, year by year
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。