现象背后主要有两种原因。
动力往往来源于两种原因，希望或绝望。
在多起召回案例中，许多车辆往往两种原因并存。
In many cases, the same vehicles are involved in both recalls.
但很多人指出了另外两种原因：缺乏有效执法和交通灯设计缺陷。
But many people point to two other reasons: a lack of effective law enforcement, and a flaw in the design of traffic lights.
再者，忧郁的人这样忧郁有两种原因：要么他们并不知晓，要么他们有意而为之。
But, furthermore, melancholy people have two reasons for being so: they don't know or they hope.
中文对照敬启者：我公司的男装销售额去年增加25%，我们认为这有两种原因。
Gentlemen: Last year we achieved a 25% increase in the sales of our businessmen's suits. we believed that this happy state of affairs can be attributed to two causes.
只有两种原因引发汽车突然加速事故：一是油门踏板被地垫卡住，二是油门踏板使得汽车加速太慢。
First, some Toyota floor mats entrapped drivers' gas pedal while their vehicles were in motion. Second, so-called 'sticky pedals' made some Toyota acceleration too slow to release.
哈里，人们喝酒一般有两种原因，要么是生活美好的值得庆祝，要么是活着变成了空虚悲惨的臭皮囊里装着的没用的脓浆。
People drink for two reasons: they drink when they want to celebrate life, and they drink when their lives become miserable, meaningless shells of useless protoplasm.
疟疾是造成儿童早夭的三大原因之一。报告特别提到，尽管在预防疟疾方面成果颇丰，然而在处理另外两种原因——肺炎和腹泻方面还有大量工作有待完成。
The report notes that despite big improvements in preventing malaria, one of the three main causes of deaths, much more needs to be done to treat the other two causes, pneumonia and diarrhoea.
出于这两种原因，采用Jython的风险很少，特别是它提供了这样的好处：在创建和调试动态生成的JUnittestsuite类方面具有无可匹敌的灵活性。
For these two reasons, there is little risk in adopting Jython, especially given the payoff: unparalleled flexibility in the creation and debugging of dynamically generated JUnit TestSuite classes.
她说她喝这两种饮品的原因不同。
首先，他们质疑了他们的发现，但是接着珀拉切克和卡姆意识到这种差异的原因是两种竞争机制的存在。
At first, they questioned their findings, but then Polacheck and Kamm realized that the cause of the discrepancy is the existence of two competing mechanisms.
他说，基于单独的手机数据来识别两种可能的原因是不可能的。
Distinguishing between the two possible causes on the basis of phone data alone was impossible, he says.
由于历史原因，这两种不同的拓扑被称为同构和异构。
The two different topologies, for historical reasons, are called homogeneous and heterogeneous.
Hib感染的最致命形式包括肺炎和脑膜炎，但这两种病可有其它病因，而且无论是由Hib或某种其它原因引起的，都可有同样的表现。
The most deadly forms of Hib infection include pneumonia and meningitis, but those diseases can have other causes, and can look the same whether caused by Hib or some other agent.
其中的原因之一是这些学生习惯于做true和false题目，其中的false涵盖了false和notgiven两种情况。
One reason is that they are used to doing true and false exercises where the false covers false and not given.
有些东西，是你从执行之水桶退回来的，也就是说，是需要你重新选择的——这就是为什么我上文提到说用两种方式去工作的原因。
Some of the stuff you get in Decide will be from Do, namely, stuff that you have to re-decide upon. That’s what I wanted to say with “working both ways”.
这两种现象都表明网络或主机性能差，这可能就是您的用户抱怨的应用程序超时的原因。
Both of these can indicate poor network or host performance, which may be causing the application that your users are complaining about to time out.
笔者认为存在两种可能的解释：其一是有些回答家庭调查的人尽管由于天气原因赋闲在家却仍然认为他们在工作。
I have two possible explanations: some people who answered the household survey thought they were still working even though they stayed home because of weather.
洛克韦尔说，造成这两种动物的栖息地重叠的原因有两个：一是灰熊从洛基山脉向东面和南面正在扩大它们的生存范围，结果使它们的数量不断增长。
The reason for the potential habitat overlap is twofold: grizzliesseem to be expanding their range east and south from the Rockies, mostly as a result of their growing population, says Rockwell.
这样规定的原因实际上与观念无关，而是来自XML设计的实践和对两种方式的效果的观察。
The reasons for this prescription are actually a bit philosophical, but they come from experience in XML design, and observing the effects of both cases.
对这些有争议的反应有两种可能的原因。
There are two possible explanations for these conflicting responses.
将一部分代码从一个方法中取出并放进另一个方法中的原因主要有两种。
There are two main cases where you might want to take some code out of a method and put it in another method.
锻炼可以促进我们的精神状态，一部分原因是通过影响身体中两种化学物质的水平：皮质醇和内啡肽。
Exercise improves one's state of mind in part by affecting the body's levels of two chemicals: cortisol and endorphins.
为了找出蛋白功能不能逆转的原因，桑顿博士和同事们又仔细的对比了新老两种受体。
To figure out why they could go forward but not backward, Dr. Thornton and his colleagues looked closely again at the old and new receptors.
之后，他就错过截止时间的原因提供了两种解释。
He later offered two other explanations for missing the deadline.
很难说，不过有一种可能是中期内这两种欧洲货币会得到小幅提振，原因是亚洲各国央行在管理本国外汇储备上的怪异做法。
It's hard to say, but one possibility is that these European currencies get a minor lift over the medium-term due to a quirk related to how Asian central Banks manage their foreign-exchange reserves.
很难说，不过有一种可能是中期内这两种欧洲货币会得到小幅提振，原因是亚洲各国央行在管理本国外汇储备上的怪异做法。
It's hard to say, but one possibility is that these European currencies get a minor lift over the medium-term due to a quirk related to how Asian central Banks manage their foreign-exchange reserves.
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