它可以追溯到我生命中的很长一段时间，但与我自己的研究生生涯最直接相关的是，我去了几所不同的学校。
It goes back to a long time in my life, but most immediately relevant to my own graduate career, which I went to several different schools.
为了让需求是可追溯的，它必须是可引用的——也就是，在不同的工作产品之上，必须将它在整个生命周期中明确确定。
In order for a requirement to be traceable, it must be referable — i.e., it must be identified unambiguously over its entire lifecycle across different work products.
如果我们真的是通过自然选择的过程进化出来的结果，那么人类生命的价值看起来是不能追溯到源头的。
If we were truly a result of evolution by process of natural selection, this value on human life seems as though it has no source.
在整个生命周期的工件中，它们是完全连接且可追溯的，包括需求、测试案例，和代码。
They are fully connected and traceable throughout all the lifecycle artifacts, including requirements, test cases, and code.
黑白画像的生命饱含历史，追溯到摄影诞生之时。
The life of the monochrome portrait contains a rich history dating back to the birth of photography itself.
RationalRequisitePro——将业务需求追溯回业务目标，然后介入到服务开发生命周期。
Rational RequisitePro - traces business requirements back to business goals and to steps in the service development lifecycle.
11事件的遗产在资源方面和生命方面——士兵、平民和承包商——代价昂贵，当前的债务危机也可以在那一天追溯到先例。
The legacy of 9/11 has been costly, in terms of resources as well as in terms of lives—of troops, civilians and contractors. The current debt crisis also traces its antecedents to that day.
从需求到测试用例更完整的生命周期追溯性。
Full lifecycle traceability from requirements to test cases.
生命的长河滚滚向前，我们在流逝的人生中所追溯的轨迹比什么都珍贵。
Always passing, the stream of life, which in the stream of life we trace is dearer than them all.
当老人成为沮丧，它通常可以追溯到一些重大指出，已经影响到他们的生命。
When seniors become depressed it can usually be traced to something major that has affected their lives.
我们若是要考虑生命是如何形成的，就得再向前追溯数十亿年。
If we want to consider how life arose we have to look back a further thousand million years.
追溯蝴蝶历来的受欢迎程度，我们发现它们在很多文化中都象征着生命、死亡和重生。
As we trace the popularity of butterflies through history, we find that, for many cultures, they are symbolic ICONS of life, death and resurrection.
一个新的摄谱仪回溯数十亿光年远的宇宙绘制宇宙网状结构图，并追溯宇宙中生命基本元素的分布。
A new spectrograph slices across billions of light-years to map the filamentary structure of the universe and trace the distribution of elements that are fundamental to life.
我想知道你是否可以每天从并不漂亮的物体上发现美，是否能从自身的存在追溯生命的本源。
I want to know if you can see beauty even when it's not pretty, every day, and if you can sourse your own life from its presence.
皮影表演的历史要追溯到汉代以前，选材考究，人物造型生动鲜明，有强韧的生命力。
The way it rhymes is seldom. The history of using shadow play in Wan Wan Opera dated back to even before Han Dynasty.
许多古代遗迹可以追溯到超过4000年，一些洞穴呈现生命的迹象在一万年前。
Many of the ancient ruins date back over 4000 years, with some caves showing signs of life over 10,000 years ago.
许多古代遗迹可以追溯到超过4000年，一些洞穴呈现生命的迹象在一万年前。
Many of the ancient ruins date back over 4000 years, with some caves showing signs of life over 10,000 years ago.
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