It was difficult to explain the problem to beginners.
对初学者解释这个问题很难。
Well, you know, it's difficult to explain.
唉，你知道，这很难解释。
Although some sightings of UFOs are difficult to explain, most can be explained quite easily.
虽然有些目击 UFO的现象很难解释，但大多数都可以很容易地解释。
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。
这很难解释。
Who I was is quite difficult to explain.
我是谁，这一点解释起来相当困难。
That looks increasingly difficult to explain.
这似乎很难解释。
I found it difficult to explain to him what happened.
我觉得向他解释清发生了什么事很困难。
It was not an easy one and was very difficult to explain.
这不是个容易的决定，也很难解释。
It was difficult to explain their antagonism towards strangers.
很难解释他们对陌生人的敌意。
It's always difficult to explain what kind of music we exactly play.
想要准确地解释我们的音乐类型总是很难的。
The wonder of the Dharma is very difficult to explain with words.
佛法的奥妙，要用语言说明白，是很难的事。
"Old age is awfully difficult to explain," she said just before I left.
我将要离开时，她对我说：“晚年，实在很难解释清楚。”
This problem is more obvious and thus easier to detect, but difficult to explain.
这个问题更加明显一些并且比较容易检测，但却很难解释。
However, do not yet discuss results that are perhaps controversial or difficult to explain.
此刻暂不要讨论有争议或者难以解释的结果。
Certainly, it would be difficult to explain our RIGS over the phone. May I call on you today or tomorrow?
当然可以，在电话中介绍我们的钻机可能比较困难，我可以在今天或明天去拜访你吗？
Around 1990, molecular biologists obtained a number of unexpected results that were difficult to explain.
在1990年左右，分子生物学家得到了一些难以解释的意料之外的实验结果。
Reasoning is also developed early on, although sometimes it is difficult to explain reasoning to a two-year old.
推理的能力在小时候也得以培养起来，尽管有时候向一个2岁的小孩解释推理甚为困难。
Cravings are difficult to explain scientifically, she says, "because people don't eat nutrients; they eat food."
吃的渴望很难从科学上解释，她说。“因为人们不是吃营养，而是吃食物。”
HR 8799e's relative closeness to its star makes it difficult to explain how both it and its gas-giant companions formed.
HR 8799e与其恒星相对较近的距离使得人们很难解释它以及其它三颗气态巨星的成因。
But the findings in Ghana were more difficult to explain, because deaths from causes other than malaria fell more sharply.
但是在加纳的发现更难以解释，因为除疟疾之外由其他原因导致的死亡降低的更为显著。
It's difficult to explain the feeling - it's a combination of excitement and relief, and the emotions hit you all at once.
在这种情况下进球的感觉很难说清楚——大概是兴奋和释放的结合体，而且这种情绪会立刻将你淹没。
Lifting the Champions League Cup to the sky was a special feeling, it is difficult to explain this in words. It was wonderful.
高举起冠军联赛奖杯的感觉非常特别，很难用语言来解释，非常的美妙。
Dark flow, he said, "would be much more difficult to explain theoretically if it extended [2.5 billion light-years] and then just stopped."
他说，“如果黑暗流延伸[25亿光年]然后戛然而止，那么理论上就更加难以解释。”
Despite this, researchers in the field have found it difficult to explain exactly how caloric restriction produces these favourable effects.
尽管如此，研究人员发现很难准确解释为什么能量限制能产生如此良好效果。
The enjoyment of Nature is an art, depending so much on one's mood and personality, and like all art, it is difficult to explain its technique.
大自然的享受是一种艺术，与一个人的心境和个性极有关系，同时，和一切的艺术一样，其技巧是很难说明的。
The enjoyment of Nature is an art, depending so much on one's mood and personality, and like all art, it is difficult to explain its technique.
大自然的享受是一种艺术，与一个人的心境和个性极有关系，同时，和一切的艺术一样，其技巧是很难说明的。
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