很长时间

I've been waiting a long time.

我等了很长时间了。

He had me waiting for a long time.

他让我等了很长时间。

Your son's been waiting a long time .

你的儿子已经等了很长时间了。

"I'm the waitress, I've been here for quite some time."

"我是这儿的侍者，在这里很长时间了。"

Democracy ultimately foundered under all three leaders. When Sun died, in 1925, warlordism and disunity still engulfed many parts of China.

但是这三位领导人都未能把民主贯彻到底。1925年，孙中山逝世以后，军阀割据在中国存在了很长时间。

You have watched TV for a long time.

你看了很长时间电视了！

Because vitamin C is a water-soluble vitamin, it is not stored in the body for very long.

由于维生素C是一种水溶性维生素，它不是储存在体内很长时间。

Both Weir and Pancake thought about it for the longest time.

W和P想了很长时间。

I don't know him well though I've known him for a long time.

我对他并不了解，虽然我认识他已经很长时间了。

In the wake of this past week's market meltdown, WSJ's economics editor David Wessel looks at the shakeup and sees one of two outcomes: the crisis as catharsis or a drawn-out mess.

上周市场崩溃之后，《华尔街日报》经济学编辑 David Wess面对这种震撼看出了两个结果之一：危机就像是通便或持续很长时间的排便。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。