loose end

1.However, so many managnemnt department lead enterprise into dilemmatic situation, which lead them at loose ends.

然而，管理部门多了却使企业左右为难，无所适从。

2.It’s a very unsatisfactory detective story. You know who committed the murder, but there are far too many loose ends.

这个侦探故写得差强人意。虽然可以锁定兇手，但是很多细节没有交待清楚。