adj.<贬>莽撞的,有勇无谋的;
例句:
You were very foolhardy to jump off the bus while it was still moving.
公共汽车还未停定你便跳下车,真是太莽撞了.
His foolhardy attempts to prove himself risked his life on occasion.
有时,他的鲁莽行为甚至会带来生命危险.
Let's be foolhardy and assume the best.
让我们大胆地往最好处设想.