Wherefore dost thou forget us for ever, and forsake us so long time?

你为何永远忘记我们。为何许久离弃我们。

youdao

I haven't enjoyed myself so much for a long time.

我好长时间没有这么快活了。

《牛津词典》

The symbolism may come from the fact that the olive tree takes a long time to produce fruit, so olives could only be cultivated successfully in long periods of peace.

它的象征意义可能来自于橄榄树需要很长时间才能结出果实，所以橄榄只能在长久的和平时期才能被成功种植。

youdao

Nor shall death brag thou wander'st in his shade, When in eternal lines to time thou grow'st: So long as men can breathe, or eyes can see, So long lives this, and this gives life to thee.

VOA: special.2010.01.06

So it took a long time for the twenty books that we have to get settled on. And we'll talk about how that actually happened,also,still.

所以很长一段时间之后那27本书,才最终被确定下来，我们会谈及,那是如何实现的。

耶鲁公开课 - 新约课程节选

so for about six, oh, no, it was nine hours a day, it's a long time ago.

每天要上六个，噢，不是，是九个小时的课，这都是很久以前的事情了。

纽约的人们 - SpeakingMax英语口语达人

But last year those rules were loosened to allow hot foods to be left out for up to four hours and cold foods for up to six hours, so long as the time the food was removed was noted and the temperature was monitored, in some cases.

WSJ: Restaurants: City Failing on Kimchi

You and your wife are both still very young, and so any decisions you make are likely to have to last you for a long time, so they have to be properly thought through - and by that I mean that you can't just say "I don't like my job so I'm off!"

BBC: Fergus Muirhead

The Baltic Sea is semi-enclosed, so it takes a long time to flush out toxins.

BBC: Sweden wants explanation on Baltic nuclear 'dumping'