Why is it so difficult to take that first step?
为什么迈出第一步如此困难？
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。
So again I ask myself, why is it so difficult to install one of these seats?
所以我再一次问自己，为什么安装一个座椅如此困难？
HIV has been so difficult to fight in part because it is such an adept mutant.
艾滋病毒难以杀灭，原因就是它极易突变。
"It is so difficult to pay my loan," said Bika, who still owes more than $1,400 after a year.
“这点钱很难还清我的贷款”，比卡说，在工作一年之后，他仍背负1400美元债务。
All this lends urgency to the question: Why are extra pounds so difficult to shed and keep off?
以上这些使得人们急于回答这个问题：为什么甩掉肥肉，保持苗条这么不容易呢？
Some of the basic theories are so difficult to understand, such as the concept of Yin and Yang.
有些理论很难理解，比如阴和阳的概念。
"It is so difficult to pay my loan, " said Bika, who still owes more than $1, 400 after a year.
“这点钱很难还清我的贷款”，比卡说，在工作一年之后，他仍背负1400美元债务。
You'll be surprised how something that seemed so difficult to retrofit may not be so bad after all.
您会惊奇地发现一些似乎难以改进的事情并不是很糟糕。
That's what makes it so difficult to predict exactly how rapidly we might see the Arctic go ice-free.
这就是为什么我们很难准确预测最早什么时候能看到无冰的北极。
It relates everything that is in our minds with this little word, which makes it so difficult to pronounce.
几乎所有我们所想都和这个小小的字眼有关，因而把它说出来就有些困难了。
He said the AIDS virus, also known as HIV, has been so difficult to stop because it mutates at a dizzying rate.
他表示，艾滋病毒，即人体免疫缺陷病毒非常难以防控，因为它的突变速度快得惊人。
This may explain why the European Central Bank has found it so difficult to get euro-zone inflation back below its target of 2%.
欧洲央行对此深有体会，她已经察觉到要使通货膨胀率重回2%——欧元区的通货膨胀率目标——以下是多么困难。
But a bank's prospects are so difficult to assess for small depositors that some form of supervision might be necessary anyway.
但对小额存款者来说，评估银行的前景实在太过困难，因此某种形式的监管是必须的。
What makes them laugh and cry, why are they temperamental, why are they so difficult to get along with, what do they really want?
是什么让他们欢笑和哭泣，为什么他们喜怒无常，为什么他们这么难相处，他们到底想要什么？
Part of the reason it's so difficult to tell these two scenarios apart is that spotty observations make fake signals in the data.
之所以很难把两种假说分辨开来，是因为质量不一的观测带来了数据中的虚假信号。
The issues that make it so difficult to accurately predict costs, timelines, and staffing requirements on software projects include.
在软件项目中导致准确预期成本、日程和人员需求很困难的问题包括。
Brown dwarfs are also thought to be common, but there are only a few hundred known at this time because they are so difficult to see.
褐矮星也很常见，但由于它们太难以被观测，因此到目前为止已知的褐矮星只有寥寥几百。
When you lose a job, especially in this economy where it can be so difficult to find another one, it's hard to maintain your sense of self.
丢了工作之后，人们难免妄自菲薄，特别是在当前的经济形势下，重新就业尤为艰难。
It was so difficult to just keep the car on the track because it was very wet and the car was basically undriveable in those conditions.
由于路面湿滑并且基本上赛车很难控制，想保持赛车在赛道上都是非常困难的。
Moreover fruits have enzymes essential for various bodily activities like metabolism, so difficult to obtain from meats and processed foods.
此外，水果含有各种身体活动如代谢所必需的酶，所以很难从肉类和加工食品中获得。
Moreover fruits have enzymes essential for various bodily activities like metabolism, so difficult to obtain from meats and processed foods.
此外，水果含有各种身体活动如代谢所必需的酶，所以很难从肉类和加工食品中获得。
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