I pointed out that a fallback plan is if life comes crashing down.
我指出逃离计划的前提是生活完全崩溃。
Mars is a focal point in the quest to learn if life exists beyond Earth.
火星是研究地球以外是否存在生命的一个焦点。
Yet Pushkin said, "if life has deceived you, don't be sad and don't be impatient!"
还有普希金“假如生活欺骗了你，不要悲伤，不要心急！”
If life were a meaningful poem, college life would be one of the most beautiful words.
倘若一生是一首含义深刻的诗篇，那么大学生活一定是那最为清丽的语句。
It was as if life were just passing by, and I was waiting for something to happen.
仿佛生命只是不停地流逝，而我永远在等待着发生些什么。
'if life can evolve, it's going to have billions and billions of years to adapt to the surface.
如果Gliese 581g上的生命也能进化，它肯定是花费了数亿年的时间来适应行星表面。
He doesn't like cities; he's allergic to crowds. He dresses as if life were one long camping trip.
他不喜欢城市，对人群过敏，永远穿着一身随时可以去露营的装扮。
Fortunately, if life has taken root in the Alpha Centauri system, it is not likely to suffer this fate.
值得庆幸的是，如果半人马座阿尔法星系存在生命，它们遭受此厄运的可能性微乎其微。
If life were all one dead level the dull sameness it would oppress us; we want the hills and the valleys.
若是我们前面的生活只是平而又光，何等乏味！我们需要山和谷。
That's a remote possibility, but if life does exist on Titan, let's hope the seas there are still pirate-free.
这个可能性微乎其微，但是如果真的在泰坦上存在生命的话，希望这片海还能够让我们随意出入吧。
But no matter the reason, if life in retirement is not comfortable, then we won't see the improvements we did.
无论什么原因，如果退休后的生活不舒适，我们将看不到已有的改善。
So if life does emerge readily under terrestrial conditions, then perhaps it formed many times on our home planet.
所以如果生命确实可以毫无困难地在陆地环境中生活，那么也许生命曾在地球上形成过多次。
And verily, if life had no sense, and had I to choose nonsense, this would be the desirablest nonsense for me also.
确实，如果生命没有意义，而我又不得不选择胡混的话，这也是我首选的胡混。
If life is a quilt, then love should be a thread. It can hardly be seen anywhere or anytime, but it's really there.
如果把生活看成一床被子，那么爱就是其中的线。
Given all of this, if life were to be found on Titan, it would blast away everything we understand about how life works.
考虑到所有这些情况，如果在泰坦上发现了生命，它将打破我们关于生命运转的一切认知。
Yet Pushkin said, "if life has deceived you, don't be sad and don't be impatient!" In the heavyhearted days, it is needed to remain calm.
还有普希金“假如生活欺骗了你，不要悲伤，不要心急！”
The problem is that if life exists elsewhere in the solar system it must be living underground on places like Mars, Europa, and Enceladus.
问题是如果有生命存在在太阳系的其它地方，那他一定是生活在像火星，欧罗巴和恩克拉多斯的地下。
If life was devoid of all these difficulties, we would have never understood the importance of happiness - the importance of getting what we want.
如果生活缺乏这些困难，我们将不会理解幸福的重要——得到我们想要的东西的重要性。
If life exists, scientists expect the planet's rays to be embedded with tell-tale chemical fingerprints of atmospheric molecules, such as oxygen and methane.
如果生命存在，科学家们希望这个行星上的光线能够嵌入大气层分子的化学指纹位移指示器，像氧气、甲烷一类的气体。
For example, we can't find out if life is on Mars without going there. It could conceivably require nothing less than the resources of a full-blown human expedition.
例如，除了生活中那里，我们就不能知道火星上的生活是怎样的。
If life looks cheery in spite of the gloomy weather, mass job insecurity and the suspicion that spending hours on Facebook is mangling your mind, you might want to thank your brightside gene.
尽管天气阴沉，山一样的工作让人不安，疑心花费数小时在Facebook网站上会损伤你的才智，但生活看起来仍很愉快——如果这样，你应该感谢你的“光明基因”。
She threatened to publicly expose his double life if he left her.
她威胁说，要是他离开她的话，就将他的双重生活公之于众。
I had always impressed upon the children that if they worked hard they would succeed in life.
我过去总是让孩子们明白，生活中如果他们努力就会成功。
The message is crystal clear – if you lose weight, you will have a happier, healthier, better life.
这意思很清楚–如果你减肥的话，你会过上更快乐、更健康、更美好的生活。
If someone's life is in trouble, do you just hope and pray that things will turn out fine?
别人的生活陷入了困境，而你就只是希望能为他祷告等着情况有好转吗？
He lived a hard life, "If they could do it, why couldn't I?"
他过着艰苦的生活，“如果他们能做到，为什么我不能？”
If you can't trust anything, life becomes intolerable.
倘若你什么都不相信的话，生活就会变得难以忍受。
It is easy to believe that you never have any luck in everyday life if you don't seem to be getting any breaks.
人们很容易相信，如果你在日常生活中运气一直不好的话，你就永远不会收获机会。
It is true in life that if we just keep going forward without looking back, we are more likely to reach our goals.
在生活中，如果我们只是勇往直前而不回头，我们更有可能实现我们的目标。
It is true in life that if we just keep going forward without looking back, we are more likely to reach our goals.
在生活中，如果我们只是勇往直前而不回头，我们更有可能实现我们的目标。
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