No one knows for sure when or why it began to symbolize peace.
没有人确切地知道它是什么时候或者为什么开始成为和平的象征。
It's never, when or why, it's the way that he die.
绝不会，无论何时什么原因，成为他死去的方式。
But no one knows for sure when or why it began to symbolise peace.
但是没人能够确认橄榄枝什么时候为什么成为了和平的象征。
It is impossible to predict when or why anyone of us may require help at home.
它是无法预测何时或为何我们任何人都可能需要在家里的帮助。
Suskind and I argue that we don't know how, when or why the decision was made-though we suspect it was much earlier.
而我和苏斯金德则认为，我们并不知道这个决定是如何做出的，是什么时候做出的，以及为什么要做出这样的决定，尽管我很早之前就对此决定有过怀疑。
But no one knows for sure when or why it began to symbolise peace. There is probably a connection with ancient Greece.
但无人确切知道在什么时候、或者是什么原因橄榄枝成了和平的象征，这有可能与古代希腊有关系。
Though pranksters and joke-lovers in many countries now gleefully prepare to dupe friends and loved ones on April Fool's Day, no one knows exactly when or why, or even where, this tradition began.
尽管很多国家的恶作剧达人和笑话达人正兴高采烈地准备在愚人节拿爱人和朋友开涮，但没有人知道这种习俗开始的确切时间、原因、甚至地点。
That's why most people and organizations just roll over and give up when they're challenged or attacked by the I.R.S.
那就是为什么大部分人和组织遇到国内收入署的质疑和责问时转而听命并且放弃的原因。
Why ride hundreds of miles on a bicycle when you can drive in a car, or better yet fly in a plane?
既然你可以驾车，或者更好一点，坐飞机，为什么还要骑几百英里的自行车？
Nor does it explain why, in a species where one parent determines handedness, a brood is not exclusively right or left-handed when the offspring would have the same genetic predisposition.
这也不能解释为什么在一个由父母一方决定利手的物种中，当后代具有相同的遗传倾向时，他们并非完全是右撇子或左撇子。
Nor does it explain why, in a species where one parent determines handedness, a brood is not exclusively right- or left-handed when the offspring would have the same genetic predisposition.
这也不能解释为什么在一个由父母一方决定用手习惯的物种中，当后代具有相同的遗传倾向时，他们并非完全是右撇子或左撇子。
When it comes to the letter grade on your test or homework, you might notice that there is no letter. Have you ever thought about why that is so?
当涉及到你的考试或家庭作业的字母分数时，你可能会注意到没有字母。你想过为什么会这样吗？
Nor does it explain why, in a species where one parent determines handedness, a brood is not exclusively right-or left-handed when the offspring would have the same genetic predisposition.
这也不能解释为什么在一个由父母一方决定用利手的物种中，当后代具有相同的遗传倾向时，他们并非完全是右撇子或左撇子。
Why are you advised not to wear shorts or slippery shoes when carrying bamboo?
为什么建议你在搬竹子时不要穿短裤或打滑的鞋子？
This report has implications for why, when and how we teach and learn English as a second or foreign language.
这项报告包含了我们把英语作为第二语言或外语进行教学原因、时间和方式。
They do not need to know when, how, or why the services are invoked or who invokes them.
他们并不需要知道何时、如何或为什么调用服务以及谁调用服务。
Why not live on our own, or with our families or friends, and have lovers when the mood takes us?
为什么不自己一个人住，或者和家人和朋友生活在一起，当感情来临时，为什么不再找个爱人？
Maybe that is why many people eat when they are watching TV or feeling bored.
也许这是为什么人们在看电视或感觉疲倦时吃东西的缘故。
If you are new to modeling, or if you've modeled before but still can't quite understand when to model, why you should model, or how to approach a modeling task, start with this section.
如果您是一位建模的新手，或者您曾经有过建模的经历，但是仍然对什么时候建模，为什么建模，或者如何完成建模的任务不是很了解，那么就从这个部分开始吧。
He might even explain why in the introduction or when he talks about the limitations of his study. But you could still ask the question.
他可能已经说明了为什么什么东西在介绍里或者他会在什么时候说说他研究的界线，可是，你仍然可以继续问下去啊。
Or why he lays his ears back when confronted with a stranger?
在面对一个陌生人时，狗狗的耳朵为什么又会往后贴？
When askedhow they obtained their international representation, many companies have norecollection whatsoever of how or why the relationship began.
当被问及他们是如何获得国际代表时,很多企业都不知道他们的关系是如何或者为何开始的。
You can't predict how (with what technologies), when, where, or why someone will decide to use a particular service.
您无法预测别人会如何（使用何种技术）、何时、何地或为什么使用某个特定的服务。
If you're constantly talking about how you used to do things at your last job or when the old boss was in charge, people will wonder why you stick around.
如果你总说你以前是怎么工作的，或者上一任老板在的时候是怎样的，别人会想不通，你为什么一边抱怨，一边还赖着不走。
This is why, when a woman is emotional, a man gets upset or angry and tells her to stop.
当女人感情用事时，男人会心烦意乱或恼火，并让她住口，原因就在于此。
The curious dig deepinto the details, and when they finish their detective work, they don’t onlyknow “what” or “when”, they know “how” and “why”.
好奇者会在细节上深入挖掘，而且当他们完成自己的探索之旅时， 他们不仅仅知道“是什么”或“什么时候”，他们还知道“怎么办”和“为什么”。
If I could do it now then why couldn't I have done it when I was four or three... or one?
如果我能现在见，为什么我四岁或者三岁…或是一岁时没有见过？
It's one reason why some people find themselves not losing weight or even gaining weight when they start running.
这就是为什么当有些人开始跑步的时候却发现他们的体重没有下降反而有所上升的一个原因。
THE MOST TOYS Younger children, however, may not grasp the idea of delayed gratification when asking why the family doesn’t have a second car or take nicer vacations.
年纪小的孩子们恐怕不会理解吃苦在前享乐在后的观念，所以他们常常会好奇为什么家里不买第二辆汽车或者度假的时候为什么不选一个更好的目的地。
THE MOST TOYS Younger children, however, may not grasp the idea of delayed gratification when asking why the family doesn’t have a second car or take nicer vacations.
年纪小的孩子们恐怕不会理解吃苦在前享乐在后的观念，所以他们常常会好奇为什么家里不买第二辆汽车或者度假的时候为什么不选一个更好的目的地。
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