Definition: used to give the first important reason for something Level: B2
首先，我们负担不起昂贵的租金。
___To ___begin ___with, we cannot afford the expensive rent.
首先，电动汽车减少空气污染。
___To ___begin ___with, electric cars reduce air pollution.
首先，这个计划考虑不周。
___To ___begin ___with, the plan is not well thought out.
