first off as a first point; first of all. informal
2010Jon McGregorEven the Dogs There's a patch in the underpass we'll try first off, … should get enough for the first bag of the day.
英语词组固定搭配大全包含15956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。