zhè / fèn / bào / gào / de / zuò / yòng / shì / shí / yí / bǔ / quē / wán / shàn / yuán / yǒu / fāng / àn

这份报告的作用是拾遗补缺，完善原有方案。

This report serves to fill in the gaps and improve the original plan.