They got away with having caused the serious traffic accident.他们造成了严重的交通事故却没受惩罚.
问题描述：
They got away with having caused the serious traffic accident.他们造成了严重的交通事故却没受惩罚.
having caused 是什么用法?
答
with 加动词ing构成的介词短语作状语,having caused表示（事故）已造成这一事实状态.