I was caught in a traffic jam for over an hour, otherwise I would have not kept you waiting for such a long time.

我遇上塞车堵了一个多小时，否则我就不会让你等这么长时间。

youdao

They took a long time getting to the top, the only reward for the long years of waiting being that when they had their own newspapers, both knew what they wanted and firmly set about getting it.

他们花了很长时间才达到顶峰，多年等待的唯一回报是，当他们有了自己的报纸，他们俩都知道自己想要什么，并坚定地着手去实现它。

youdao

It is impolite to keep others waiting for a long time.

让别人久等是不礼貌的。

youdao

Al Masri said there is the belief among many Palestinians the peace process died a long time ago and is waiting for someone to bury it.

VOA: standard.2009.11.16

Let's do it, we've been waiting for a long time to go for a drink.

那就去吧，我们好久没好好喝一杯了。

How about 实战 - SpeakingMax英语口语达人

So whereas we may have had the impression that this was sort of a quick and dirty operation, this is something that has been in the planning stages for a long time, just waiting for the appropriate moment where the targets could be hit.

NPR: Somalia Raids Were Long in the Making

Certainly that Learjet that has been readied for me might be waiting for a good long time before I set foot within its leathered luxury.

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"I've been waiting a long time for it and I was delighted the opportunity came along, " Iwelumo said.

BBC: Iwelumo regrets Boyd withdrawal