per-=through,thoroughly,away 变化型 par-,pel-,pil-
adj [usu attrib 通常作定语]
1 continuing indefinitely; permanent 永久的; 永恒的
*the perpetual snow of the Arctic 北极终年不化的积雪.
2 without interruption; continuous 不间断的; 持续的
*the perpetual noise of traffic 不绝于耳的交通噪音.
3 (infml 口) frequently repeated; continual 反覆的; 不断的
*He was irritated by their perpetual complaints. 他们一再发牢骚把他惹火了.
adj [usually before noun]
1300-1400; Language: Old French;Origin:
perpetuel, from Latin
perpetuus, from petere 'to go to'
continuing all the time without changing or stopping
= continuous the perpetual noise of the machines a little girl with a perpetual smile
repeated many times in a way that annoys you
= continual my mother's perpetual naggingliterary
permanent the perpetual snows of the mountaintops>perpetuallyadv
1. They hoped to live in perpetual happiness. 他们希望生活在永久幸福之中。
2. As the parents had five children, life was a perpetual struggle against poverty. 家里已有5个孩子，全家人常年在贫困中挣扎。