许久的英文：
for a long time

参考例句：

Jim dwelt upon his mistakes long after the test was over
考试结束许久，吉姆还在想他的做错的题。

I was frozen stiff after sitting so long, and could hardly walk.
坐了这许久，我冻得两脚僵硬，几乎走不动。

It was well past midnight, and twenty-four U.S. planes flew high over the horizon.
午夜后许久，二十四架美国飞机在天际的高空飞行。

Two old boys tarried on the street corner discussing cattle.
两个大男孩在街角停留许久，一直在讨论牛。

It was like the last feeble echo of a sound made long and long ago.
那声音好象许久许久以前的声音所遗留下的细微的回响。

Troy toiled up the road with a languor and depression greater than any he had experienced for many a day and year before
特罗伊带着一种许久不曾有过的倦怠和沮丧在路上艰难地走着。

They went down the cold, abandoned stairway and out the dark hall into the street’s brilliant assault.
她们走下阴冷的，许久没人走的楼梯，出了黑洞的大厅，来到了阳光刺眼的大街上。

A fishbone got stuck in his throat, and after a long wrestle, he managed to swallow it down.
一根鱼骨鲠在他喉咙里,他挣扎了许久,总算把它咽下去了。

They went down the cold, abandoned stairway and out the dark hall into the street’s brilliant assault
她们走下阴冷的，许久没人走的楼梯，出了黑洞的大厅，来到了阳光刺眼的大街上。

long是什么意思：
adj. 长的；长时间的；冗长的；长音的
adv. 长久地，长期地；始终
n. 长时间，长时期；长音节
v. 渴望
abbr. 经度，经线

But perhaps not for long.
但这并不会持续太长时间。

It will take a long time to read through this long story.
要读完这长篇故事要花相当长的时间。

propagation of long and very long wave in the ionosphere
电离层长波和超长波传播

The article is too long, it has to be cut.
这篇文章太长了，要删减。

This stuff wears long.
这种料子很经穿。

time是什么意思：
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的

discrimination time
辨别时间辨别时间

It is time to go.
该走了。

They are not in step with the times.
他们跟不上时代的步伐。

This was for the time only.
这只是一时的权宜之计。

What for this time?
这次又是为什么？