The divorce rate among the movie stars is so high that it is difficult to know who is married to whom.
电影明星的离婚率如此之高，导致人们很难知道谁和谁结婚了。
Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior.
给它安装无线电设备是很困难的，而且仅凭肉眼观测也太不可靠，无法对它的行为进行确切的观察。
Machiavelli, he notes, concluded that "one ought to be both feared and loved, but as it is difficult for the two to go together, it is much safer to be feared than loved."
他指出Machiavelli 总结说： “一个人应该既让人敬畏又让人爱戴，但由于两者很难同时存在，因此让人敬畏比让人爱戴要安全得多。”
In fact, it is difficult to see how journalists who do not have a clear grasp of the basic features of the Canadian Constitution can do a competent job on political stories.
事实上，如果记者对加拿大宪法的基本特征没有清晰的把握，他们很难胜任报道政治事件的工作。
These methods may be useful for a while, but it is difficult to solve this problem completely.
这些方法可能暂时有用，但要完全解决这个问题是很困难的。
You won't know what he means at first, for it is difficult to understand him.
起初你不知道他是什么意思，因为很难理解他。
Some people believe that it is difficult to protect users' privacy on social network sites.
一些人认为很难在社交网站上保护用户的隐私。
Crowding on Mooreville's subway frequently leads to delays, because it is difficult for passengers to exit from the trains.
穆尔维尔的地铁拥挤不堪，经常导致晚点，因为乘客很难从火车上出来。
Targland's officials predict that these measures will be adequate, since it is difficult to collect the tortoises without a vehicle.
塔格兰德的官员预测这些措施将是足够的，因为没有交通工具的话，很难收集这些乌龟。
But if improving their hunting luck was the chief motivation for the paintings, it is difficult to explain why only a few show signs of having been speared.
但是，如果增强他们的狩猎运气是这些画的主要动机，那么就很难解释为什么只有少量画作有被长矛刺过的迹象。
It is also true that it is difficult to think of a single such system that has not, for better or worse, been substantially modified by human culture.
同样，很难想象一个这样的系统：不管是好是坏，都没有经过人类文化的实质性修改。
In large cities, people complain it is difficult to breathe.
在大城市，人们抱怨呼吸困难。
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。
For the students in one small village in China, it is difficult.
对于中国一个小村庄的学生来说，这很困难。
His parents believe that he needs to spend more time on his homework because it is difficult to become a professional sports star.
他的父母认为，他需要花更多的时间在功课上，因为要成为一名职业体育明星是很难的。
Some people complained that it is difficult to deal with wet garbage, as they are asked to remove wet garbage from its bag when dumping.
一些人抱怨说，湿垃圾很难处理，因为按要求在倾倒垃圾时要把湿垃圾从袋子里拿出来。
But it is difficult to compare a 1932 Picasso with one painted in 1904-5.
但是很难将毕加索1932年的作品与1904-5年的画作相提并论。
If we see a person first in a good light, it is difficult subsequently to darken that light.
如果我们对一个人的第一印象很好的话，想要把这个印象变坏也是很难的。
But it is difficult to detect and treat, so many women opt to have their ovaries taken out.
不过，卵巢癌很难诊断，也很难治疗，因此，许多妇女选择了摘除卵巢。
With zinc, there is so little research that it is difficult to determine zinc's effect on a cold.
目前针对锌片预防感冒效果的研究寥寥无几，以至于很难判定其是否有效。
Without the standards, it is difficult to integrate multi-vendor EAI applications over the Internet.
没有标准，在互联网上整合多商家的 EAI应用程序是非常困难的。
If you ever had cats as pets, you know it is difficult to train them or to get them to do something.
如果你曾经养猫作为宠物，你知道要训练它们或者让它们做某件事非常困难。
Because you are very kind-hearted, it is difficult to form words, I wish you a Happy Father's Day!
因为您慈祥无比，难以言表，祝您父亲节快乐！
Jump hook: a hook shot taken while jumping, popular among big men because it is difficult to block.
勾手跳投(jump hook)：起跳时的勾手投球，因为很难防守，所以在个子高的球员中特别流行。
Furthermore, it is difficult to optimize the test script decomposition without a clear strategy in mind.
此外，如果在头脑中没有一个清晰的策略，是很难优化测试脚本分解的。
He admits it is difficult to make accurate comparisons, because the research is still in its infancy.
他承认很难作出精确的比较，因为这项研究仍处于初级阶段。
But no reality shows push the less dramatic method, and it is difficult to find clinicians who use it.
但没有任何真实秀节目推广这种温和的方法，也很难找到临床医师使用这种方法。
But no reality shows push the less dramatic method, and it is difficult to find clinicians who use it.
但没有任何真实秀节目推广这种温和的方法，也很难找到临床医师使用这种方法。
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