adj.自以为是的,专横的,冒失的
adv.自以为是地,专横地,冒失地
n.自以为是,专横,冒失
It is too presumptuous of him to do so.
他这样做太放肆了.
It would be presumptuous to judge what the outcome will be.
现在就判断结果将会怎样未免有些冒昧。
It was presumptuous of him to take charge.
他自拿主张,太放肆了.