perennially的例句（perennially在句子中的用法）

• A fighter is perennially young. 战士是永远年轻的.
• We want to know what is perennially new about the world. 我们想知道世上什么东西永远是新的.
• Both services are perennially short of staff. 两个机构一直都是人手不够。