Resting stages thus comprise a series of adaptations that allow the species to avoid the most difficult conditions for life.
因此，休眠期包含了一系列的适应过程，使物种能够避开最困难的生存情形。
The more difficult a child's life circumstances, the more important it is for that child to find joy in his or her classroom.
一个孩子的生活环境越是困难，他或她在课堂上能够找到快乐就越重要。
It is difficult for us to imagine what life was like for slaves in the ancient world.
我们很难想象古代奴隶的生活是怎么样的。
In wider and more difficult areas of life, there is evidence to indicate that natural surroundings improve all kinds of things.
在更广阔，更艰难的生命领域中，有证据表明自然环境可以改善各种事情。
His biographies of James Watt, Richard Arkwright and Josiah Wedgwood were held up as beacons to guide the working man through his difficult life.
他写的关于詹姆斯·瓦特、理查德·阿克赖特和约西亚·韦奇伍德的传记被奉为是指引工人们度过艰难生活的灯塔。
I can understand why astronauts find it difficult to readjust to life on earth.
我能明白为什么宇航员们发现难以重新适应地球上的生活。
When she first came to this city, she found life here a bit difficult to get used to.
她刚来这座城市的时候，发现要习惯这里的生活有点难。
But many of us find it difficult to keep the food connection with our busy life.
但是我们很多人发现很难把食物和我们忙碌的生活联系起来。
What some teenagers don't realize is how difficult life can be after they get addicted to drugs.
一些青少年没有意识到一旦他们染上毒瘾，生活会变得多么困难。
In our daily life, robots are often found to do work that is too dangerous, boring, difficult, or dirty.
在我们的日常生活中，机器人经常做太危险、无聊、困难、或脏的工作。
Returning to normal life can be difficult, but some small routines—mail delivery being one of them—may help residents remember that their communities are still their communities.
回归正常生活是很困难的，但是一些日常小工作——邮件递送就是其中之一——可以帮助居民想起他们的社区仍然是他们的社区。
Tolstoy spent his whole life trying to answer these difficult questions.
托尔斯泰一生都在试图回答这些难题。
Life will be difficult, but I have the confidence to live a happy, full life.
生活将是艰难的，但我有信心过上幸福、充实的生活。
When he could go to the distant place, he would find that life there is just as difficult.
但当他能走到远处的草地时，他会发现，那边的生活也不好过。
Scientists think this is the plants' way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars.
科学家认为，这是植物防止树木疾病传播的方法，并给像毛毛虫之类的食叶昆虫制造些生存上的困难。
When I think back to those special days, I appreciate that he helped me go through such a difficult time in my life.
当我回想起那些特殊的日子，我很感激他帮助我度过了生命中如此艰难的时刻。
Life is usually controlled by cars in the US. There's no cheap and good public transportation, so it's so difficult to get somewhere.
在美国，人们的生活受到汽车支配。由于没有便宜优质的公共交通工具，所以很难去其他地方。
When she first came to this pastoral area, she found life here a bit difficult to get used to.
她刚来牧区的时候，生活上感到有点别扭。
Certainly, life after the Abdication was going to be difficult.
的确如此，退位后的生活肯定是艰难的。
And yes, having a manager who is not good at explaining what needs to be done makes life difficult.
是的，拥有一位不擅长解释该干什么事情的经理的确令生活困难。
To make life a little more difficult, ASDI was expecting us to wrap up the use-case documentation before we proceeded with follow-on tasks.
为了使生活更加有难度，ASDI期望我们在继续随后的任务之前创建用例文档。
It is difficult to readjust ourselves to life in a foreign country in a short time.
我们要想在短期内重新适应异国的生活是不容易的。
Though it might be difficult, you should strive to be patient in your life.
虽然学会忍耐是很困难的，但是在你的生活中，你应该努力变得忍耐。
It's difficult to readjust to life on Earth, to go from being a temporary cosmonaut to being a normal civilian.
重新调整以适应地球生活是困难的，从临时宇航员到普通平民的适应也是一样。
Professor Scott agrees that favoured children can sometimes find life difficult when they have to rub along in the real world.
斯科特教授承认，当受宠的孩子不得不在现实世界中勉强度日时，有时会感到人生很艰难。
We used to have a very difficult life.
我们过去过的是很艰苦的生活。
Can you imagine a best seller titled, "Ten Difficult Steps to Change Your Life" or "Fifteen Difficult Ways to Get in Shape"?
你能够想象最畅销书的题目是“困难的十步将改变你的生活”或者“保持良好状态的困难十五步”。
Today, it is very difficult to imagine a life without shoes, slippers and sandals.
今天，我们很难想像没有鞋的生活，包括拖鞋和凉拖。
Today, it is very difficult to imagine a life without shoes, slippers and sandals.
今天，我们很难想像没有鞋的生活，包括拖鞋和凉拖。
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