英语中表示一段时间的短语有哪些？

in a (little) while--I'll be back in a little while我很快就会回来。

in an instant--She finished her work in an instant.
她没有多久就完成了她的工作

presently--adv.
一会儿, 不久

[美,方]现在, 目前

[古]立刻, 马上

the best method presently known
目前所知的最佳方法
I am coming presently.
我一会儿就来。
She is in Japan presently.
她现在正在日本。
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soon--立刻, 马上, 一会儿, 不久

快; 早

[用sooner 形, 常和would, should, had 等连用]宁可, 宁愿...也不, 与其...不如

She will be back soon.
她马上就回来。
You spoke too soon.
你说得太急[早]了。
S-got, soon gone [spent].
[谚]来得容易去得快。
S-learned, soon forgotten.
学得快, 忘得快。
He would sooner die than consent to such a plan.
他宁死也不肯同意这种计划。
The brave soldier would as soon die as yield to such an enemy.
那位英勇的军人宁死也不肯屈服于这样的敌人。
习惯用语
;

awhile--adv.
片刻

The bus is not due yet awhile.
公共汽车还要一会儿才会来。
习惯用语
yet awhile (用于否定句)还要一段时间, 还要一会儿

in a moment--In a moment, please.
请稍候。
In a moment; very soon.
片刻；很快

sometime ,
just now,
so far,
last night,
right away,
the day after tomorrow,
the day before yesterday,
five days ago,
five days before,
this week,
next week,
a week ago,
a week before,
last month,
next month,
this year,
next year,
three months ago,
this century,
last century...

long long ago 过去式 很久以前
after breakfast 早饭以后
after lunch 午饭以后
after dinner 晚饭以后
a few time 一些时间
......

in a minite=in a moment=right away