transient

1. ADJ Transient is used to describe a situation that lasts only a short time or is constantly changing. 短暂的[正式]

...the transient nature of high fashion. …最新时尚转瞬即逝的特点。

2. N-COUNT Transients are people who stay in a place for only a short time and then move somewhere else. 流动人员[正式] [usu pl]

...a dormitory for transients. …一个流动人员的宿舍。