pick and choose
select with much care挑三拣四
Some people pick and choose to get something perfect，and some just because they can't make up their minds．有些人挑剔是想得到完美的东西，而有的人只是因为拿不定主意。
You haven't time to pick and choose from among so many pictures．这么多的图片，你是没有时间从中细选的。