for starters idiom informal
首先，第一
used to say that something is the first in a list of things
Try this exercise for starters. 首先，试一下这个练习。
"Why did you decide not to go to the concert?" "Well, for starters, the tickets were ridiculously expensive." “你为什么决定不去听音乐会了？”“嗯，首先，票贵得太离谱了。”