xīn / jīng / lǐ / shàng / rèn / hòu / ， / kuài / dāo / duàn / luàn / má / de / jiě / jué / le / bù / mén / zhī / jiān / cháng / qī / cún / zài / de / máo / dùn / 。

新经理上任后，快刀断乱麻地解决了部门之间长期存在的矛盾。

After taking office, the new manager decisively resolved the long-standing conflicts between departments.