abruptness
n. 突然;唐突;粗鲁无理;急缓度
例句
Fortunes change with dizzy abruptness.
命运瞬息万变,令人目眩。
The abruptness of her appearance at the meeting surprised us all.
她在会议上的突然出现使我们都吃了一惊。
My dear, forgive for my abruptness and frankness, forget my triviality please.
亲爱的,原谅我的直白和莽撞,对于我的琐细请不要介意。