1. Father had a family of sons who were perpetually quarrelling among themselves. 一位父亲有几个小孩子，这些小孩子时常发生口角。
2. Mainstream economics assumes that the economy, the engine of modern civilization, can grow perpetually. 主流经济学认为，经济作为现代文明引擎，能够永远增长下去。
3. Philosophical doubts exist perpetually, and it is an expression of the existing style and existing state of people. 哲学“疑问”总是永恒存在的，这是人的生存方式与生存状况的一种表现。
英英解释
adv.
1. seemingly uninterrupted
2. everlastingly; for all time
