短暂的的英文：
brief
ephemeral
fleeting
little
passing
short
short-lived
transient
transitory
unabiding

参考例句：

Short - lived or ephemeral,as a life.
短命的或短暂的，如生命

a froth of entertainment
一阵短暂的娱乐

Something that is airy,insubstantial,or passing.
过眼烟云虚幻的、不现实的或短暂存在的东西

Mushroom fame
突然而得的名声(短暂的命运)

Life is short and time is swift.
人生苦短，岁月易逝(人生短暂，时光匆匆)。

It is inconsistent to attribute such a short lag period to a result of an auxin effect on gene activity
将如此短暂的延迟期归结为生长素作用于基因活性的结果走不合适的。

The time of life is short; to spend that shortness basely, it would be too long.--William Shakespeare, British dramatist
人生苦短,若虚度年华,则短暂的人生就太长了。英国剧作家莎士比亚

Glasses and contact lenses do not interfere with the scanning process, and it takes only a brief moment.
一般眼镜与隐形眼镜都不会干扰扫描过程，而且扫描仅需短暂的时间。

A slight pause
短暂的停顿

The transient Beauty of youth
短暂的青春年华

brief是什么意思：
adj. 短暂的；简短的，简洁的；草率的
n. 概要，诉书；简报
v. 简报；作…的提要

A brief gust or blast of wind.
一阵强风短时期的狂风或阵风。

a high - level corporate briefing.
高级人士进行的公司基本情况介绍会

In brief, the matter stand thusly.
简单的说，事情就是这样。

ephemeral是什么意思：
adj. 短暂的；朝生暮死的

It is not something ephemeral.
它不是朝生暮死的东西。

Her success as a singer was ephemeral.
作为歌唱家她取得的成功只是昙花一现。

Such novels came forward to enjoy ephemeral popularity only.
这样的小说只是昙花一现的东西而已。

fleeting是什么意思：
adj. 稍纵即逝的，短暂的

That is a fleet horse.
那是一匹快马。

This is a vain and fleeting thing.
这是一种空虚的、转瞬即逝的东西。

The world is like a fleeting show.
人世如白驹过隙。