We cannot exist without air, food, and water.
我们没有空气、食物和水就不能生存。
We cannot exist without food or water.
没有食物或水我们就不能生存。
We cannot exist without air, food and water.
我们没有空气、食物和水就不能生存。
We need to eat and sleep every day. There are some repetitive processes that we cannot exist without.
我们每天都吃饭睡觉，没有这些重复的活动我们就无法生存。
All life is born in water, and so far as we know, life cannot exist without water.
一切生命都诞生于水中，就我们目前所知，生命无法存在于没有水的环境中。
Even the mighty Higgs cannot explain those mysteries - though through telescopes and observation, we know they exist.
虽然作用巨大的希格斯粒子不能揭开这些谜团，通过天文望远镜的观察，我们仍能感觉到它们的存在。
Since user engagement is a variable that we cannot predetermine, we instead use active learning techniques to apply those interactions (where they exist) to the improvement of the algorithm.
因为用户的参与度是不可预计的，所以我们使用了另外一种方式，我们使用主动学习技术，通过分析用户的交互信息来对算法进行提升。
For if we cannot acknowledge that the shadows exist-the shadows cast by others, as well as the ones we cast ourselves-how can we hope to dispel them?
因为如果我们没有意识到影子的存在，怎么可能希望将它驱走呢？这影子有可能是他人的影子，也有可能是我们自己的影子。
The next unit of water might not even exist if we cannot get smart enough to use our single supply of water well.
如果我们不能有效使用我们仅有的水资源的话，那么下一个单元的水将不复存在。
Unfortunately we are unable to test any of these theories as we cannot experience (and measure) the fundamental constants in alternate universes (if they exist), so this is a speculative study.
不幸的是因为我们无法体验(并测量)其它宇宙(如果存在的话)中的基本常量，因此我们无法验证这些理论，所以说这是一个推测性的研究。
We cannot live [exist] without food and water.
没有食物和水我们就不能生存。
We know a peaceful world cannot long exist one-third rich and two-thirds hungry.
一个和平的世界不能够有三分之一富裕而三分之二饥饿。
We cannot use aggregation because if customer does not exist, cart and order cannot exist also.
我们不能使用聚合，因为如果客户不存在，购物车和订单也不能存在。
Although the air is invisible, we cannot say it doesn't exist.
空气虽然没有形象，看不见，但不能说空气不存在。
We believe that a healthy intellectual life cannot exist separately from a life of art and creativity.
我们相信离开了艺术和创造力我们的生活将变得了无生趣。
We believe that a healthy intellectual life cannot exist separately from a life of art and creativity.
我们相信离开了艺术和创造力我们的生活将变得了无生趣。
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