The structure of the universe may not be reducible to a problem in physics.
宇宙的结构不可能被简化为一个物理问题。
That's always been a problem in this port.
这是这个港口一直存在的问题。
I missed by a mile, which is a problem in drawing my lines, but never mind.
我差了一英里，这是我画线的一个问题，但无所谓了。
The reason why I write this letter to you is that I have a problem in respect of the writing style.
我写这封信的原因是我有一个关于写作风格的问题。
This is not only a problem in developing countries. About half of all pregnancies globally are unintended.
这不仅是发展中国家的问题，全球约一半的怀孕都是意外怀孕。
This is not only a problem in developing countries, about half of all pregnancies globally are unintended.
这不仅是发展中国家的问题，全球约一半的怀孕是意外怀孕。
A problem in using outdoor advertising is that of getting reliable data on the number of people who actually see an advertisement.
使用户外广告的一个问题是如何获得关于实际看到广告的人数的可靠数据。
One funny observation about a problem in your life can be funny, but five is just complaining, no matter how smart you think you are.
对生活中对某个问题的观察可能很有趣，但第五个就是抱怨，不管你认为自己有多聪明。
VAT fraud, in which tax is charged as part of a transaction but not surrendered to any government, has long been a problem in the market.
增值税欺诈一直是该市场的一个问题，它是指税赋已经作为交易的一部分征收，但并未向任何政府上缴。
Bullying is a problem in many schools.
很多学校都出现学生仗势作恶的问题。
Many doctors feel that this is a problem in the twenty-first century.
许多医生认为这是21世纪的一个问题。
Food safety is a problem in all places around the world—in developing and developed countries.
食品安全是世界各国都面临着的问题，无论是发展中国家还是发达国家。
The spelling of English has always been a problem, but it was more of a problem in the days before a dictionary.
英语的拼写一直是个问题，但在字典出现之前，它更是一个问题。
"We thought waste was a problem in rich countries," says Martina Otto, who works for the UN Environment Program.
在联合国环境规划署工作的玛蒂娜·奥托说：“我们认为浪费在过去是富裕国家的问题。”
We have a problem in the United States that usually only wealthy kids go to the best schools and it's kind of a problem actually.
美国有一个问题，通常只有有钱人家的孩子才能去最好的学校上学，而这实际上是一个难题。
We have a problem in the United States that usually only wealthy kids go to the best schools, and it's kind of a problem actually.
美国有一个问题，通常只有有钱的孩子才能去最好的学校，而这实际上是一个问题。
But that poses a problem in some ways.
但这也造成了某些方面的问题。
Wildfires are certainly a problem in Brazil.
山火在巴西确实是个问题。
This too is not a problem in the short term.
着同样也不是短期问题。
Why should he give himself a problem in morality?
为什么他还是给自己留下一个道德问题呢？
Permissions still tend to be a problem in some circles.
权限在某些场合下仍然是一个问题。
Lack of coordination has been a problem in some cases.
这其中有些是因为缺乏协调而造成的。
Lack of coordination has been a problem in some cases.
这其中有些是因为缺乏协调而造成的。
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