The problem of hunger worldwide is a hard nut to crack. I'm afraid that scientists need to put in more efforts.
全球性的饥饿问题是个棘手的问题，恐怕科学家们需要付出更多的努力。
Sometimes, it is a hard nut to crack without an expert's help.
有时候，如果没有专家的帮助，这是一件很难解决的事情。
Building such a bridge over the bay was a hard nut to crack but the local government made it within two years.
在海湾上建造这样一座桥是一件困难的事情，但当地政府在两年内完成了。
Regardless, the investigation showed how hard it is to crack such a case.
不论如何，这次调查显示出了应对类似案件的棘手之处。
Hence, administrators must choose a very hard to break password so that nobody can crack it, thus compromising system security.
因而，管理员必须选择非常难于破解的密码，以免被他人破解而影响系统的安全性。
一种难以寻找而且难以对付的坚果。
My manager is a hard nut to crack. He always shouts at me about what I have done.
经理是个很难对付的人，他总是对我做的事大吼大叫。
他是一个难对付的家伙。
He wants to see how hard it is to crack into the network without even touching a single tool.
他想知道要闯入网络而不使用任何工具的难度如何。
Force the users to select a really hard to crack password.
强制用户选择极难破解的密码。
The question of world hunger is a very hard nut to crack . I doubt if we'll find the answer to it in my lifetime.
世界性的饥饿问题是个极其难以解决的问题，我恐怕人们在我这一辈子都找不出解决的办法。
Benjamin: The boss is a hard nut to crack. He always shouts at me for trivial things.
本杰明：老板是个狠角色。他经常因为一点小事儿对我大吼大叫。
Sudan was a hard nut to crack.
苏丹真的是难啃的骨头。
In the paper welded joints with a crack in transverse overmatched weld or HAZ were simplified into a model in which a transverse hard layer contains a crack parallel to the interfaces.
本文将高匹配焊缝或热影响区(haz)淬硬层中含纵向裂纹的焊接接头简化为硬夹层含平行裂纹的力学不均匀体模型。
Give examples to say, if you want to have a chat boxing match or mathematics hard nut to crack with me, that just like in play piano the cow.
举例来说，如果你想和我聊聊拳击比赛或是数学难题，那无异于对牛弹琴。
The project of a bank office building in a special urban environment provides a hard nut to crack but also a chance to challenge a new form.
一幢在特定都市环境中的银行大楼设计，给设计者提出了苛刻的设计条件，同时也提供了创造新形式的机遇。
But I don't like her boyfriend, Jack. He's a hard nut to crack.
但是我不喜欢她的男朋友，杰克。他是个难对付的人。
In English skill training for listening, speaking, reading and writing, listening takes an important position, yet it is also a hard nut to crack in English language learning.
在英语“听、说、读、写”技能训练中，听占有重要的地位，但这也是在英语学习中不易突破的一个难关。
Practice proves that we are a team to fight a hard battle, worthy of framing crack the title.
实践证明我们是一支能打硬仗的队伍，无愧于铺架劲旅的称号。
Employee turnover is a hard nut to crack for human resource management.
雇员离职是人力资源管理面临的一个棘手问题。
This problem is a hard nut to crack.
这个问题是块难啃的骨头。
Mr. White is a hard nut to crack.
怀特先生是个难以对付的人。
He is really a hard nut to crack. You need to be more patient.
他是一个很难对付的人，你需要更多的耐心。
Jeff: This is indeed a hard nut to crack.
杰夫：这实在是一个棘手的问题。
I never know Bill very well. He was not very communicative and always seemed to me a hard nut to crack.
我从来就不太了解比尔，他不太爱说话，我总觉得他这个人很难对付。
The unit in translation is a hard nut to crack.
该单位在翻译是很难啃的骨头。
The project of an industrial center for teaching located on a special site, provides us a hard nut to crack but also a chance to challenge a new height.
一座选址于特殊地形的教育工业中心，给建筑师出了一道难题，同时也提供了挑战新高度的机会。
The project of an industrial center for teaching located on a special site, provides us a hard nut to crack but also a chance to challenge a new height.
一座选址于特殊地形的教育工业中心，给建筑师出了一道难题，同时也提供了挑战新高度的机会。
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