A man estranged from his wife is convinced that he has a live serpent inside him which perpetual gnaws at him . 一个和妻子疏远的男人相信体内有一条活蛇常常在咬他。
Cost accounting systems provide timely unit product costs through the use of perpetual inventory procedures . 成本会计系统通过使用永续盘存制定期提供产品的单位成本。
I had looked forward to an interval of rest and a change from the perpetual clatter of the war . 我本来指望能休息一段时间，摆脱战争的不断纷扰，以使自己的生活有所调剂。
Without this measureless and perpetual uncertainty, the drama of human life would be destroyed . 然而，假使没有这种无法估计的和无穷无尽的变幻，人生的戏剧就会变得索然寡味了。
I hold that, in contemplation of universal law and of the constitution, the union of these states is perpetual . 考虑到一般法律和宪法，我认为这些州所组成的联邦乃是永久性的。
Arguments based on the impossibility of perpetual motion can be used to support newton's third law of mechanics . 以承动机的不可能实现为基础的论据，也可用以支持牛顿第三运动定律。
This social crisis was seen as a reminder of the perpetual crisis of sinful humanity under the judgement of god . 这一社会危机是在上帝的审判下对罪恶的人类所发生的永久性危机的启示。
Then round the swimmer, bored by struggling through the perpetual surf of family life, new combers swelled . 游泳者在家庭生活的此起彼伏的浪头里已经挣扎得厌倦了，他周围又掀起了新的波浪。
To catch the laugh of him was a perpetual source of irritation, which her own sense of propriety could but just smooth over . 一看到他在大笑，她就恼火，这种满腔怒火只是怕有失体统才勉强未形诸声色。
Far rather would i be condemned to a perpetual dwelling in the infernal regions, than, even for one night, abide beneath the roof of wuthering heights again . 我宁可注定永久住在地狱里，也不肯再在呼啸山庄的屋顶下住一夜了。
