It is a world difficult problem that the protein feed is insufficient, so developing compound protein feeds is one of the effective ways to solving this problem.
蛋白质饲料不足是世界性难题，研制复合蛋白饲料是解决这一问题的有效途径之一。
Traffic problem is an important one of the people's livelihood. City traffic problem is a world difficult problem. We must take some steps and measures to reduce the city traffic congestion.
交通问题是重大民生问题，城市交通问题是世界的难题，必须要采取多种措施，多种方式努力缓解城市交通拥堵。
As global markets continue to see-saw on the verge of another recession, central banks across the world face a difficult balancing act of monetary policy.
随着全球市场继续在另一场萧条的边缘摇摆不定，全球各国央行都面临着艰难的货币政策平衡行动。
The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill.
为世界粮食短缺问题找到长期技术解决方案的希望似乎很难实现。
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。
That's important in many parts of the world, where it's difficult to find clean water.
对世界上很多难以找到干净水源的地方而言，它十分重要。
He wanted to make something to help people in parts of the world where it's difficult to find clean water.
他想做点什么来帮助世界上那些很难找到清洁水源的人们。
These days it is difficult to imagine a world without books.
如今，很难想象一个没有书的世界。
Putting out forest fire is regarded as one of the most difficult problems in the world.
·扑灭森林大火被认为是世界上最难解决的问题之一。
Perseverance is the simplest yet most difficult thing in the world, because everyone can do it, but not everyone will do.
坚持是世界上最简单也是最困难的事情，因为每个人都可以做到，但不是每个人都会做到。
A poor community in the developing world may find it difficult to bring in foreign fruits or raise cattle for meat, but it can almost certainly use the land it has in order to grow plenty of rice.
发展中国家的贫困社区可能会发现很难引进外国水果或饲养肉牛，但几乎可以肯定的是，它可以利用其拥有的土地来种植大量的水稻。
Our integrity helps us make complex and difficult decisions about the world and the communities we live in, to make real sacrifices for what we believe in.
我们的正直诚实帮助我们在这个复杂的世界和群体中做出艰难的抉择，为我们的信仰做真正的牺牲。
Dives here are more difficult than other parts of the world and should only be done by experience divers.
在这里潜水比在其他地方要更困难，而且应当只有经验丰富者才能在这里潜水。
Humans are highly complex social primates and, because of this, our responses to the world can be difficult to explain with simple biology or neurotransmitters.
人类是高度复杂的社会性灵长类动物，所以我们对外界的反应很难用单纯的生物学或神经传递素来解释。
Traveling around the world with children is difficult enough, but attempting it without using motorized transport is even more of a challenge.
带着孩子环游世界已经足够难的了，但是尝试着不使用机动交通设备带着孩子环游世界是一个更大的挑战。
Marriage is one of the most difficult things in the world and unfortunately sometimes they fail.
婚姻是世界上最困难的事情，很不幸有的时候婚姻会失败。
Whether a club has the best fans in the world is a subjective opinion difficult to back up with facts.
一家俱乐部的球迷是否最棒是个主观性命题，很难用现实数据来说明。
But I think it shows that getting formats other than HTML accepted in the real world is very difficult.
但我认为在现实中使人们接受HTML以外的其他格式非常艰难。
Reconciling the rich world to the rise of these powerhouses will be as difficult as integrating the third world into the global market, Mr Van Agtmael argues.
阿格·塔米尔认为，让富裕国家接纳新兴国家的崛起，和让第三世界融入全球市场一样困难。
The writer observes that survival is a difficult endeavor and that the world can sometimes seem harshly hostile.
作者发现，人类需要通过努力而生存,但这个世界往往是非常残酷的。
Such an outcome would make it very difficult for the developed world to work off its debts; more countries would fall into the kind of debt trap faced by Japan.
这样的结果很难使发达国家摆脱债务，更多的国家将陷入日本所面临的债务陷阱。
In the analogue world, copying was difficult and degenerative (ie copies of copies became progressively worse than the original). In the digital world, copying is effortless and perfect.
在模拟世界里，复制是困难和退化的(即副本复制件比原本越来越差)，而在数字世界中，复制是高效和完善的。
Paying the bill will be difficult, and so will living in a thriftier world
偿还债务将困难重重，生活在一个较节俭的世界也是如此。
Predicting further leakages is extremely difficult, says Gabor Figeczky of the World Wildlife Fund’s Hungarian arm.
世界野生动植物基金会匈牙利分会的嘉伯•菲盖茨（GaborFigeczky）说：对是否会有进一步泄漏的预测是非常困难的。
"The patient was brave, " she added. "She was stable in facing the world, but it was very difficult for her to go out of the house."
她很勇敢，在面对这个世界的时候很镇静，但是，走出自己的房子对她来说异常的艰难
The group of about 1,000 islands also has one of the lowest population densities in the world, making services difficult and expensive to deliver.
所罗门群岛约有1000座岛屿，是世界上人口密度最低的国家之一，这使得提供服务的难度大、成本高。
But, until we live in a different world—one quite difficult to imagine at the present time—this seems all we can hold onto.
直到今天这个世界，这个我们的祖先完全难以想象的世界，人文科学是唯一能给我们提供信仰的所在。
As the world shrinks, it becomes more difficult to ignore the potential users of your software that speak different languages and live in different cultures.
随着全球化的不断推进，更加难以忽略那些潜在的、讲着不同语言、生活在不同文化中的软件用户。
Regulators round the world sometimes find it difficult holding businesses to account for their infractions.
世界上的管理者有时发现很难要求企业为它们的违规行为负责。
Regulators round the world sometimes find it difficult holding businesses to account for their infractions.
世界上的管理者有时发现很难要求企业为它们的违规行为负责。
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