而永不变化的MAC地址给物理设备提供了一个独特可靠的地址。
The never-changing MAC provides a specific, reliable address for a physical device.
自人类在地球上诞生，变化更替一直是生命中不变的因素。
Since the time when human beings were born on this earth, change has been a constant factor in life.
抑或，形式本身并不变化，它们也许就如乌龟一般耐心，坚定地，等待你的到来。
Or maybe their shape doesn't even change; maybe they hold form, waiting for you as patiently as turtles.
在一个城市，唯一不变的就是变化。
早在我记事起，就有一个固定不变的传统，开很长时间的车穿越新英格兰，去见证树叶的变化，享受枫叶糖，苹果酒和甜甜圈。
From my earliest years, it became a solidified tradition to go on long drives throughout New England to witness the foliage change, snack on maple candy, cider and donuts.
只有变化是永恒不变的。
世界上唯一不变的事物就是变化本身。
管理开发进度最大的挑战在于“唯一不变的就是变化”。
The greatest challenge to maintaining a development schedule is that "the only constant is change."
假如服务接口不变化，则基础运营系统可能会在不影响服务使用者的情况下进行变更。
Providing the service interface doesn't change, the underlying operational systems may change without affecting the service consumer.
在我们的生命中唯一不变的就是，变化。
在我的经验之中，尽管技术在变化，但使用技术的人不变。
In my experience, although technology changes, people do not.
“关于变化唯一不变的便是变化本身”，我丈夫对此深以为然。
My husband truly believes that ‘The only thing constant about change is change itself’.
“关于变化唯一不变的便是变化本身”，我丈夫对此深以为然。
My husband truly believes that 'The only thing constant about change is change itself'.
因为即使在设计发生变化时内容也可以保持不变，所以这也保证了外观的一致性。
This also guarantees a consistent presentation because the contents remain unchanged even when the design changes.
爱是流动的，爱是变化的，但又总是不变的。
Love is flowing, love is changing and still it is always the same.
没有任何事情一成不变。你必须跟上变化的旋律。变化就是规范。
Nothing stays the same. You have to be in tune with changes. Change is the norm.
青少年很少会被描述为性情稳定，因此当他们的迅速变化的大脑内部有种不变的现象时，就引起了神经系统科学家的注意。
Teens are rarely described as stable, so when something about their rapidly changing brains remains placidly unaltered, neuroscientists take notice.
雅思口语话题(topic)的准备是大家在备考雅思口语考试的时候最重要的部分，但是大家要了解雅思口语话题并不是一成不变的，了解了这个变化的规律，有助于大家选择考试的时间，提高考试成绩。
The preparation of IELTS speaking topic is the most important part in IELTS speaking test. However, the topic is not fixed and it's necessary to learn the rules of these changes.
唯一永恒不变的是“不断变化着的变化、转变”；所有的事物天然地倾向于和谐。 大自然试图达到一个更稳定的状态，而不是互相恐吓、排挤。
(Sa’ke’j:) The only constant is change–constant change, transformations; everything naturally friendly, trying to reach a more stable state instead of bullying each other around.
在1836年离开小猎犬号之前，他就逐渐明确地相信，与普遍的观念相反，生命并不是静止不变的——物种是变化并演进的。
But by the time he left the Beagle in 1836, he was plainly becoming convinced that, contrary to the prevailing wisdom, life is not static-species change and evolve.
即使服务器的address发生变化，如果feed的内容不变，那么feedid也应该保持不变。
Even if the address of your server changes, the feed id should remain unchanged if the content remains unchanged.
Compass 1.2升级简易——主要的API仍然保持不变，有所更改的是一些配置和微小的API方面的修改，相关的升级文档(upgradenotes)覆盖了这些变化。
Easy upgrade from Compass 1.2 — the main API has remained the same, with configuration tweaks and minor API changes being documented in the upgrade notes.
RubyDevelopmentTools (RDT)插件的名称及查找代码的位置已经发生变化，但是基本函数和许可条款在本质上保留不变。
The name of the Ruby Development Tools (RDT) plug-in and where to find the code have changed, but the basic function and licensing terms have remained essentially unchanged.
值得欣慰的是自尊也并非一成不变的，因为随着时间的推移人们的自我形象也在不断变化着。
The good news is that, because everyone's self-image changes over time, self-esteem is not fixed for life.
值得欣慰的是自尊也并非一成不变的，因为随着时间的推移人们的自我形象也在不断变化着。
The good news is that, because everyone's self-image changes over time, self-esteem is not fixed for life.
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