ADJ-GRADED
（变化或过程）逐渐发生的，零敲碎打的，零散的
If you describe a change or process as piecemeal, you disapprove of it because it happens gradually, usually at irregular intervals, and is probably not satisfactory.
例句
Instead of the government's piecemeal approach, what is needed is a radical shake-up of 16-19 education.
需要的不是政府零敲碎打的措施，而是要对16至19岁年龄段的教育进行彻底变革。
...piecemeal changes to the constitution.
对宪法零星的修订