Companies' hopes that promotions might have a positive aftereffect have not been borne out for reasons that researchers have been able to identify.
企业希望促销活动可能产生积极的后果，但由于一些研究人员能够确定的原因，这种希望并没有得到证实。
For three-year-olds, for reasons that are still in need of clarification, no improvement—rather a slight drop in performance resulted from the change.
对于三岁的孩子来说，由于一些原因，他们的成绩并没有得到改善，只是因为改变而略有下降。
The ancestors of the modern Zuni and Hopi built and then, for reasons still mysterious, abandoned the complex roads and structures of the domain they ruled a millennium ago in the American southwest.
一千年前在美国西南部，现代祖尼人和霍皮人的祖先在他们统治的土地上修建了复杂的道路和建筑，后来由于一些不为人所知的原因，又遗弃了这些复杂的道路和建筑。
He refused for reasons of conscience to eat meat.
他为了良心好过而拒绝了吃肉。
For reasons of security the door is always kept locked.
为了保证安全，门总是锁着的。
He wants to keep them all in his office for reasons best known to himself.
他想把他们都留在他的办公室里，原因只有他自己知道。
You probably like that character (人物) for reasons that are all your own.
你可能会出于自己的原因喜欢那个人物。
Zebras' thin coats make them more vulnerable than long-haired animals to biting flies that carry disease, but the coats stripes prevent flies from landing on them, for reasons that scientists are still studying.
斑马很薄的皮毛使它们比长毛动物更容易受到携带疾病的苍蝇的叮咬，但是斑马身上的条纹可以防止苍蝇落在它们身上，科学家仍在研究其原因。
Most people attend college for reasons of career preparation.
大部分人读大学是为了就业做准备。
For reasons not fully understood, the field itself reverses periodically every million years or so.
由于一些尚不完全清楚的原因，该领域本身大约每隔百万年就会周期性地翻转一次。
For reasons that aren't yet well understood, cloned animals often abort spontaneously or are born with defects.
由于无法搞懂的原因，克隆动物通常会自行流产，或者具有天生缺陷。
These scientists, for reasons that are mostly arbitrary, either just missed getting a research grant or just barely made it.
由于一些原因，这些科学家要么是错失了研究经费，要么只是勉强成功了，而这其中的原因大多是随机的。
It was decided to make the replica half-scale for reasons of cost and time, and synthetic materials were used for the stitching.
由于成本和时间的原因，我们决定将复制品缩小一半，并使用合成材料来缝合。
However they did it, the Lapita spread themselves a third of the way across the Pacific, then called it quits for reasons known only to them.
不管他们怎么做到这点，拉皮塔人穿越了太平洋的三分之一，分散居住在那里，并称其离开是出于一些只有他们才知道的原因。
For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic and nationalistic.
几个世纪以来，探险家们冒着生命危险探索未知的世界，其原因在不同程度上与经济和民族主义有关。
Now, for reasons to do with reorganization and a desire to do away with all the expense of early retirement, they were shooting at him with bullets.
现在，可能是与重组和想要废除全部提前退休的费用有关，他们用子弹向他射击。
For reasons lost to time, this wasn't done.
由于时间原因，这一切未能完成。
Humans are rational because they act for reasons.
人类理性是因为他们行动是有理由的。
Look for reasons why it can't work or can't be done.
寻找它不管用或者不能实现的原因吧！
For reasons I can’t explain, he had written 200, 000.
这个结果我没办法解释，他写的数字是200，000（二十万）。
And that was understandable for reasons we'll discuss shortly.
这对于原因是可以理解的，我们将要简短讨论的。
For reasons he still can't figure out, he was allowed to stay.
但是他却被允许留下来，原因他自己也不清楚。
For reasons I still don't understand, I felt that I couldn't fit.
因为一些我现在仍不理解的原因，我觉得我不适合。
We are always looking for reasons for not taking good pictures.
我们总为拍不出好照片而找借口。
This is not for reasons of taste or elegance-through that's part of it.
并不是出于什么品位或者高雅之类的原因—这只是其中的一部分原因。
However, for reasons I'll explain, I ended up using them frequently.
但是，由于某些原因(稍后说明)，我后来常常使用它们。
The object model doesn't work that way for reasons I just discussed.
由于我刚才讨论过的原因，对象模型在那种方式下则不奏效。
For reasons still being debated, it cut childhood mortality in half.
由于目前尚无定论，它可将儿童死亡率减半。
The idea that everything happens for reasons we're not quite seeing.
每件事的发生都有我们看不见的原因。
The idea that everything happens for reasons we're not quite seeing.
每件事的发生都有我们看不见的原因。
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