尽管传统零售面临着网上零售带来的巨大挑战，但它在相当长一段时间内仍将存在。
Despite the tremendous challenges from online retailing, traditional retailing will be here to stay for quite some time.
相当长一段时间来看，情况如何呢？
我们已经认识相当长一段时间了。
这是唯一能让动机持续相当长一段时间的办法。
This is the only way to keep that motivation going over a long period of time.
这要花相当长一段时间。
事件驱动的异步web框架已经存在了相当长一段时间。
Event driven, asynchronous web frameworks have been around for quite some time.
但这通常是个渐进过程，要持续相当长一段时间。
But this is usually a gradual process stretched out over a considerable time.
只要有一点点的量，就可以维持相当长一段时间。
在登上火星任何尝试之前还会有相当长一段时间。
It will be a long time before any landing on Marscan be attempted.
一旦进入平流层，烟雾即可停留相当长一段时间并扩散到全球。
Once in the stratosphere and above the weather, smoke can linger for a long time and spread around the globe.
我知道在相当长一段时间里，最好的想象方式是要求完全放松。
I have known for quite a while that the best way to visualise your desires is when you are completely relaxed.
亲爱的小米盖尔，相当长一段时间都没办法看到你了。
Mama:My dear little Miguel, I won't be able to see you for quite some time.
我已经在相当长一段时间，这是我的一个真正的项目。
I've been hacking for quite a while and this is my one true project.
他也曾在荷兰马斯特里赫特大学和蒂尔堡大学任教相当长一段时间。
He also taught for long spells at Maastricht University and the University of Tilburg.
第一，应考虑到剂量不足，调到合适的剂量需要相当长一段时间。
First, an inadequate dose may be given, which may require a longer course of hospitalization until titration to the proper dose is achieved.
我与James谈了相当长一段时间之后，吃惊地发现，我们甚至没有提到集群。
By then I'd been talking to James for quite a while, and to my surprise, the subject of clustering hadn't even come up.
在经历了相当长一段时间以后，我才意识到这门专业其实就是研究动物的行为举止。
I had to wait quite a while before I realized it simply meant studying behavior.
你经常做健身运动已有相当长一段时间了，但是你的健身目标仍然遥不可及。
You've been working out regularly for quite a while, but you're nowhere near your fitness goals.
雇主们了解，一直以来这是个残酷的市场，你可能有相当长一段时间没有工作。
Employers understand that it's been a brutal market, and that you may have spent significant time without work.
农民的劳动虽然不一定在整个时期都持续进行，但肯定会占用相当长一段时间。
And though the labours of the agriculturist are not necessarily continuous during the whole period they must occupy a considerable part of it.
相当长一段时间，我一直在电子行业工作，但是我感觉我需要拓展我的知识和技能。
I've been working in the electronics industry for quite a while, but I feel I need to broaden my knowledge and skills.
如果我相当长一段时间都在进行开发，而没有编写相应的单元测试，我就会觉得紧张。
If I'm developing for long stretches of time without having written corresponding unit tests, I get the jitters.
例如，在某些区域，我们了解到，疟疾负担实际上比相当长一段时间里所假设的要少很多。
In some areas, for example, we are learning that the malaria burden is actually much lower than has long been presumed.
相当长一段时间以来，特别是今年以来，在亚丁湾、索马里海域频繁发生海盗袭击、劫持过往船只事件。
For a long period of time, particularly over the past year, the Aden Gulf and seas off the Somali coast have witnessed rampant pirate attacks with many vessels hijacked.
这颗轨道飞行器的任务是在火星表面寻找水的证据，而且水量必须足以为生命栖息地维持相当长一段时间。
The orbiter was commissioned to search for evidence that water persisted on the surface of Mars for a substantial period of time - long enough to provide a habitat for life.
这颗轨道飞行器的任务是在火星表面寻找水的证据，而且水量必须足以为生命栖息地维持相当长一段时间。
The orbiter was commissioned to search for evidence that water persisted on the surface of Mars for a substantial period of time - long enough to provide a habitat for life.
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