我们为了生存必须要吃东西。
要在街头生活中得以生存，你就必须要知道你所住的街上和居民区中发生的所有事情。
Just to survive street life one must be aware of all that is going on in the streets and neighborhood lived in.
为了在那里生存，美国宇航局喷气推进实验室设计的气球必须要经受得起零下180度左右的气温。
To survive there, a balloon, designed by Nasa's Jet Propulsion Laboratory, would have to withstand temperatures around -180c.
“该幅画的灵感在于塔图因（Tatooine）的沙人族（sandpeople）为了生存在严酷和荒凉的戈壁天气里必须要做的事”纽约画家托尼 古拉那说（TonyCuranaj）。
The inspiration behind A Good Find: Portrait of a Tusken Raider is in what the sand people of Tatooine must do to survive the harsh and desolate desert climate, " says New York painter Tony Curanaj.
众所周知，野生大熊猫只吃竹子，所以，要救助它们就必须要保护它们赖以生存的森林。
As you know, wild pandas eat only bamboo, so to save them, we have to save the forests they live in.
整个晚上，你都要对我唱歌，我的刺必须要刺穿你的心脏。你赖以生存的鲜血必须要流进我的血管中，成为我的血。
All night long you must sing to me, and the thorn must Pierce your heart, and your life-blood must flow into my veins, and become mine.
对于年轻人来说，街头演变为一场战争，为了生存，他们必须要找到一些废弃的房子，这样晚上睡觉的时候才可以驱走他们骨子里散发出的寒冷。
For young people the streets become a battle to survive with some abandoned building to sleep in at night to keep the chill out of your bones.
如果没有死亡，你也就抛掉了出生的需要：事实上，如果你不断地繁殖生育，最终就必须要使老年人死亡，为新生儿留出生存的空间。
Do away with death and you do away with the need for birth: in fact if you went on breeding, you would finally have to kill old people to make room for young ones.
城市鸟类必须要适应与自然环境大相径庭的环境，并在这种不一样的环境中找到能够使自己生存下来的新方式。
Urban birds have to adapt to an environment that is not their natural home and find new ways of feeding themselves.
你必须要有坚强的意志，只有这样你才能生存。
So you have to have very stong minded then you could survive.
一个人必须要耐心。杂草总是会一次次的长出来，会让这些花朵无法生存。
One must be patient. Weeds appear from time to time, threatening to choke out such blossoms.
但如果你要生存下去，你就必须要爬起来，迎合这巨大的改变。
But if you want to survive, you have to climb up to meet this enormous change.
我想提出这个问题，就是说不是你想不想做的问题，也不是你能不能做的问题，而是你必须要做，如果要不做就没有生存的余地。
I want to ask this question, is not you want to do, nor can you do the problem, but you must do, if be no room for survival.
简单地说，要理解更大一些的信息就必须要用我们的大脑来进行处理--这是一种帮助我们生存和繁荣的进化倾向。
Put simply, our minds are desperate to comprehend larger patterns – an evolutionary proclivity that has helped us survive and thrive.
有着庞大关系网的戴恩依然认为阿森纳要在英超生存必须要有个亿万富翁投资者。
The well-connected Dein remains wedded to the belief that Arsenal can survive in the Premier League only with a billionaire investor.
为了在那里生存，美国宇航局喷气推进实验室设计的气球必须要经受得起零下180度左右的气温。
To survive there, a balloon, designed by Nasa "s Jet Propulsion Laboratory, would have to withstand temperatures around -180c."
你必须教他几项他无论如何都要学习的生存技能，你也可以适当地引导他，但仅限于他必须要学习的领域。
You have to teach him a few survival skills that he will learn anyway. You can also guide him a little bit, but those things anyway he will learn.
人要生存，必须要迎合某些东西。但是在生存中，也要有自己的想法，才能活得更有意义。
To live, people have to cater to some things. But in life, we should have our own ideas which make our lives more meaningful.
城市通常都是人满为患的，为了生存和出人头地，你必须要有闯劲，至少要充分自信。
To survive and get ahead in the generally overcrowded cities, they must be aggressive or at least assertive.
要在丛林中生存下来你必须要坚强。
在那颗行星上必须要有能使生物生存的空气和水。
There has to be air and water on the planet for living things to live on.
生存环境对于我们太重要了，我们必须要保护它。或对于我们来说，生活环境太重要了，我们必须要保护它。
First of all, we should protect the living environment of wild animals. Therefore, the foremost is to protect their habitat.
生存环境对于我们太重要了，我们必须要保护它。或对于我们来说，生活环境太重要了，我们必须要保护它。
First of all, we should protect the living environment of wild animals. Therefore, the foremost is to protect their habitat.
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