An abrupt change or action is very sudden, often in a way which is unpleasant.
例句
Rosie's idyllic world came to an abrupt end when her parents' marriage broke up...父母婚姻的破裂使得罗茜田园诗般美好的世界陡然画上了句号。The recession brought an abrupt halt to this happiness...经济衰退让这幸福戛然而止。
ADJ-GRADED
（言语）粗鲁的，唐突的，鲁莽的
Someone who is abrupt speaks in a rather rude, unfriendly way.
例句
He was abrupt to the point of rudeness...他的唐突已到了无礼的地步。Cross was a little taken aback by her abrupt manner.她鲁莽的态度让克罗斯感到有点吃惊。
英汉词典释义
adv.
突然地,意外地
He closed his speech abruptly.他突然终止了演说。The bird’s song ceased abruptly.鸟儿的歌声嘎然而止。I was abruptly notified that a half-hour speech was expected of me.我突然被通知要讲半个小时的话。When he could stand it no longer, he rose abruptly to his feet.他再也忍不住了,忽然站起身来。It had never occurred to her that a new possibility would crop up abruptly.她万万没有想到会突然出现一种新的可能性。The advantage abruptly turned against them.有利的条件突然变得对他们不利起来。His contract was abruptly terminated.他的合同意外地终止了。
(言谈举止)唐突地,冒失地
He gestured abruptly for Virginia to get in the car.他粗鲁地示意弗吉尼亚上车。
<地质>陡起地
The ground falls away abruptly to the right.右边的地势陡降。The road ends abruptly in a drop to the sea.道路的尽头是一个通向大海的陡坡。