他在造成事故后被指控鲁莽驾驶。

He was charged with ___reckless driving after causing an accident.

他们鲁莽的攀登尝试损坏了脆弱的岩层。

Their ___reckless climbing attempts damaged the fragile rock formations.

未经研究就做出如此鲁莽的投资是愚蠢的。

Making such a ___reckless investment without research is foolish.