permanent adj. 永久的,持久的
例句:Spencer was taken on for a three-month trial period before being accepted as apermanent member of staff.
在斯宾塞被接受为固定雇员之前经过了三个月的试用期。
perpetual adj. 永久的
例句:They hoped to live ill perpetual happiness.
他们希望生活在永久幸福之中。
everlasting adj. 永恒的,持久的,无止境的,耐用的
例句:The conflicting interests of producers and consumers will be everlasting.
生产者与消费者之间的利益冲突将永远存在。
eternal adj. 永恒的,永远的,不灭的,没完没了的
例句:Cherry felt eternal gratitude to him for saving her life.
切莉终生感激他的救命之恩。
lifetime n. 一生,终生,寿命
例句:Tony is a legend in his lifetime for his scientific discoveries.
托尼的科学发现使他成为传奇人物。
invariably adv. 不变地,总是 n. 总量
例句:It invariably rains when l go on vacation.
我去度假时老是下雨。
transient adj. 短暂的,瞬时的 n. 瞬时现象
例句:Angela's feeling of depression was transient.
安吉拉那抑郁的心情一会儿就过去了。
instantaneous adj. 瞬间的,即刻的,即时的
例句:Her mother accidentally swallowed the poison and death was instantaneous.
她妈妈无意中吞下毒药,即刻死去。