It's a long time since they left.
他们已经离开很久了。
The empty shell of a snail or clam may be left behind, and if it is sufficiently durable and resistant to dissolution, it may remain basically unchanged for a long period of time.
蜗牛或蛤蜊的空壳可能会被留下来，如果足够持久和抗溶解，它可能会在很长一段时间内基本保持不变。
Anyway, it was kind of a long walk to the library from the apartment I was living in at the time, so even though I had just had a smoke before I left, I decided to have another to pass the time.
总之，从我当时住的公寓到图书馆可是一段很长的距离，所以即使我在离开前已经吸过一根烟，我还是决定再来一根来消磨这段时间。
Just after he left the barber shop he saw a man in the street with a long hair and beard (it seems that it had been a long time since he had his hair cut and he looked so untidy).
客人离开后在大街上看到一个留着很长头发，满脸胡塞的人（那个人看起来脏兮兮的，好像很久没有修整过自己）。
The only case that is left, when the first two cases are false, is that more items were shipped than were ordered, or not enough were shipped, but the restocking time is too long.
当前两种情况均为 False时，剩下的唯一一种情况就是发送的商品超过订购的商品，或者是没有足够的商品发送，而且重新进货的时间又太长。
That was a long time after Hanna had left the city.
那是汉娜离开这座城市后好长时间的事了。
The night before he left, I stayed up in my room for a long time.
在他走之前的那一晚，我在自己的房间里熬到深夜。
My husband left us a long time ago.I believe he's still alive.
我丈夫很久以前就撇下了我们离开了，我相信他还活着。
My husband left us a long time ago. I believe he's still alive.
我丈夫很久以前就撇下了我们离开了，我相信他还活着。
"We travelled a long time because we left the village in winter and we came here in April," she said.
她说：“我们走了很久，因为离开村子的时候是冬天，而来到这里时是四月。”
When I left India, which was a long long time ago, my mother gave me certain utensils to take with me, and they were all heavy, I remember that.
很多很多年前，当我离开印度时，我母亲送给我一些厨具带在身上，我记得它们可真是沉甸甸的呵。
THE natural processes which dispose of carbon dioxide are, in aggregate, rather slow, which means that an increase in the atmosphere’s carbon-dioxide level will, left to itself, last a long time.
就总体而言，二氧化碳排放的自然过程是相当慢的，这便意味着，在对二氧化碳放任不管的情况下，大气层中二氧化碳含量在很长时间内都会持续增加。
I left Manchester a long time ago.
我很久以前就离开曼彻斯特了。
Almost half of respondents to the survey said they had stayed in bed or not left the house for a long period of time when depressed while 13% had quit a job.
几乎有一半的受访者说，她们精神忧郁时爱长时间躺在床上，不出家门。其中有13%失去了工作。
For instance, sensors can ping restaurant managers with text messages if a walk-in refrigerator is left ajar for too long, or coordinate pizza-oven temperatures based on real-time sales.
例如，如果可供人出入的冷冻储藏室的门在很长时间内没有关上，感应器通过短信的方式告知餐厅经理，或者根据实时的销售量调节披萨烤箱的温度。
It had taken a long time, and I was glad to know that at least the problem would be resolved before I left.
这一问题已经花了太多时间，我很高兴地看到在我离任前得以解决。
"I have lived at Sofino and been farming for a long time," Alehin began, "ever since I left the University."
离开大学后，我在沙非诺生活和务农了很长一段时间。
“A lot of these things have been in the works for a long time, ” she said. “Left-hand navigation we worked on for almost two years.
新推出的许多新功能都已研发很长时间了，左侧导航栏我们已研发两年时间了。
"A lot of these things have been in the works for a long time," she said. "Left-hand navigation we worked on for almost two years."
新推出的许多新功能都已研发很长时间了，左侧导航栏我们已研发两年时间了。
What's left over in the core, the radioactive material, will continue to give off heat for a long time.
留在核心内的放射性物质将在很长一段时间内持续放热。
Although I have left her for a long time, I still remember her verywell.
虽然我离开她已经很长时间了，但我仍然记得她。
He had also known me a long time and had just left the Senate after serving twenty-four years.
我们认识有很长时间了，他在参议院任职24年后刚刚离开。
I knew for a very long time that my right leg was good enough, but when you're a left-footed player and miss a chance or two with your right then maybe people think, 'it's his bad leg'.
在那之后，我对自己的右脚进行相同的练习，所以长时间以来，我知道自己的右脚足够棒。但是当你是一位左脚将，你因为使用右脚射门而错过1-2次机会的话，可能人们会想：‘他的右脚真臭’。
Thought about that quotation from Emerson for a long time, I left it where my mother had written it.
我把爱默生的这句名言想了好一会儿，后来我明白了，原来这是母亲写的。
Although I have left her for a long time, I still remember her very well.
虽然我离开她已经很长时间了，但我仍然记得她。
THE natural processes which dispose of carbon dioxide are, in aggregate, rather slow, which means that an increase in the atmosphere's carbon-dioxide level will, left to itself, last a long time.
总体来讲，处理（或清除）二氧化碳的自然过程是相当缓慢的，这意味着大气中增加的二氧化碳含量如果靠自然过程处理，会持续很久。
THE natural processes which dispose of carbon dioxide are, in aggregate, rather slow, which means that an increase in the atmosphere's carbon-dioxide level will, left to itself, last a long time.
总体来讲，处理（或清除）二氧化碳的自然过程是相当缓慢的，这意味着大气中增加的二氧化碳含量如果靠自然过程处理，会持续很久。
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