两个月是很长的一段时间，我们可以在假期里看望我们的祖父母。
Two months is a long time, we can visit our grandparents during the vacation.
然而，更新的数据表明，至少在该星球表面的一些部分的确存在过液态水，且存在于过去很长的一段时间内。
However, more recent data imply that at least some parts of the planet did in fact experience long periods in the past during which liquid water existed on the surface.
情绪障碍的症状持续很长的一段时间，二年或更长。
The symptoms of dysthymia last for a long time-two years or more.
螺丝钉已经被当作牢系工具使用有很长的一段时间。
你怎样才能知道这种痛苦已经持续了很长的一段时间呢？
How do you know if your grief has been going on too long? Here are some signs?
他们需要一个更强的晶体，但是试错的过程耗费了他们很长的一段时间。
They needed a stronger crystal, but the process of trial and error takes a long time.
量子记忆并非像钻石一样长久，但是它会以量子的规格存在很长的一段时间。
Unlike a diamond itself, this quantum memory isn't forever. But it lasts for a very long time by quantum standards.
我想知道在很长的一段时间我应该画，最后，我决定麦当娜，或母亲和孩子。
I wondered for a long while what I should paint, and in the end I decided on a Madonna, or mother and child.
羊毛是最早可以用来织布的纤维之一，而且有很长的一段时间它是欧洲最普遍的纺织纤维。
Wool was one of the first fibers to be used for cloth, and for a long time it was the most common textile fiber in Europe.
弗雷德：噢，我也不太清楚，毕竟二十年还是很长的一段时间。告诉我，你一直在做什么？
Fred: Oh, I don't know about that. Twenty years is a long time. But, tell me, what have you been up to?
之后很长的一段时间，我总是莫名其妙地觉得自己很愚蠢，因为我喜欢上了他不喜欢的音乐流派。
And for a long time afterwards, I always felt somehow stupid simply because I liked a genre of music he didn't.
如果您要在整个迭代期间都保持对集合的锁，那么其他的线程就会在锁外停留很长的一段时间，等待解锁。
If you are going to hold the lock on the collection during an entire iteration, then other threads may be stalled waiting for the collection lock for a long time.
在很长的一段时间里，我设立了一些看起来像是“惩罚”的目标：它们的目的仅仅是为了鞭策我不得不去工作。
For a long time, I was setting goals that were like punishments: their only purpose was to serve as whips to get me to work.
但我之所以能够舒适地做这些事情，是因为上网、看漫画或者读杂志不像读书一样要持续花上很长的一段时间。
But I can do those things comfortably because reading a website, a comic book, or a magazine article does not take the length of time and the concentration commitment that reading a book does.
在很长的一段时间里，这些反对者都拥有着民众的支持，但整场运动却是花费了24年的时间才取得最终的胜利。
They won public opinion over a long period of time. But it took 24 years for the campaign to be successful.
近几年，研究人员经过在弗雷明汉对人们的活动很长的一段时间追踪，发现肥胖、吸烟、以及幸福感是具有传染性的。
In the years since, researchers have also used Framingham to track obesity, smoking and even happiness over long periods of time.
甘德森说：“那些增加的细胞核至少还会存在三个月——对于平均寿命只有两年的老鼠而言，可算是很长的一段时间了。”
The extra nuclei stick around for at least three months -- a long time for a mouse, which lives a couple of years on average, Gundersen says.
森林会自然的生长起来，Goldammer说，但是这需要很长的一段时间，特别是对于这种云杉这种生长缓慢的树木。
The forests will grow back naturally, says Goldammer, but it will take a long time, particularly for the slower-growing trees such as spruce .
有些在线学习的学生选择加速教学速度，而有一部分选择网校是因为想要自己能够用很长的一段时间来悠闲的完成学习任务。
While some online students choose accelerated programs, others select online schools that let them do their work slowly, over a longer period of time.
这确实需要一些时间和耐心。如果你需要离开很长的一段时间，笼内训练法同样非常有效。(参见文后的关于笼内训练法的链接)。
This does require some time and patience. Crate training your dog can also be very helpful when you have to leave for longer periods of time (see Resources below for links to crate training articles).
但事实上，病人们对很多疾病有着深入的了解，尤其是慢性病如糖尿病和心脏病。虽然患有这些慢性病，病人通常能够活上很长的一段时间。
But patients actually know a great deal about many diseases, especially chronic ones like diabetes and heart problems with which they often live for many years.
心脏血管疾病是世界上老年人的“头号杀手”。德格雷说，尽管研究人员已经找到治疗心脏血管疾病的办法，但要消除该疾病还要很长的一段时间。
Cardiovascular diseases are the world's biggest age-related killers and DE Grey says there is a long way to go on these though researchers have figured out the path to follow.
然而，这意味着在很长的一段时间里，Android浏览器是不支持其中一些HTML5标准的，但是我们还是能够使用Gears来实现一部分功能。
However, that meant that for a while, some HTML 5 standards were not supported in the Android browser, but you could use Gears to get the same functions.
沙曼说：“八国集团和主要经济论坛达成一致立场的只是讨论2050年的目标。”到2050年还有很长的一段时间，可能几乎没有任何八国集团的领导人能活到那个时候。
"What the G-8 and the major economies forum agreed [to] was only to talk about the targets for 2050, which is a long way off and probably hardly any G-8 leaders will be alive at that date," he said.
接下来是很长一段时间的困惑和混乱。
含油或醋的沙拉可以储存很长一段时间，而且不需要冷藏。
Oil or vinegar based salad can be stored for a long period of time without refrigeration.
荷兰的农民能够在很长一段时间内不受这场危机的影响，因为他们专门从事于奶牛养殖、工业作物和园艺的工作。
Dutch peasants were able to remain unaffected by this crisis for a long time because they had specialized in dairy farming, industrial crops, and horticulture.
荷兰的农民能够在很长一段时间内不受这场危机的影响，因为他们专门从事于奶牛养殖、工业作物和园艺的工作。
Dutch peasants were able to remain unaffected by this crisis for a long time because they had specialized in dairy farming, industrial crops, and horticulture.
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