In theory, these machines should last for ten years or more.
从理论上讲，这些机器应能用十年以上。
In theory, the buyer could ask the seller to have a test carried out.
在理论上，买方可以要求卖方进行一次产品检测。
Achieving these goals is relatively easy in theory, yet quite difficult in practice.
实现这些目标从理论上说比较容易，但在实践上却相当困难。
In theory I'm on call day and night.
理论上，我不分昼夜随叫随到。
In theory, at least, the problem is that there are very many choices to make.
至少在理论上，问题在于我们要做太多选择。
In the internet age, at least in theory, this fraction can be much reduced.
在互联网时代，至少在理论上，这个比例可以大大降低。
"In theory," says Valentine, "this can create a high enough temperature to generate superheated steam."
“理论上，”瓦伦丁说，“这可以产生一个足够高的温度来产生过热的蒸汽。”
That sounds fine in theory, but have you really thought it through?
这话听起来很有道理，但是你真正全面考虑过没有？
In theory, this should not be happening.
这从理论上来说是不应该发生的。
In theory you can transfer your hukou from one place to another.
从理论上讲，你可以把户口从一个地方迁到另一个地方。
In theory, this problem should not occur, but in reality it does.
从理论上讲，这个问题不应该发生，但实际它却发生了。
In theory, there is no difference between theory and practice.
从理论上讲，理论与实践之间没有不同。
In theory, this maximises the value of the firm.
在理论上，这使得公司价值实现了最大化。
In theory, there was no reason to worry.
从理论上看没有需要担心的理由。
In theory, China has lots of birds.
在理论上，中国有许多种鸟。
This is much harder in practice than in theory.
这一条在实践中比在理论上难得多。
This should, in theory, allow cooler heads to make money.
理论上，运用较为冷静的头脑才会赚到钱。
But then, in theory American house prices never fall.
但当时美国的房价在理论上是不可能下跌的。
This makes perfect sense, in theory.
在理论上来说，这有极好的意义。
In theory, there should be money to go around.
理论上，应该让钱到处走动。
In theory, this system can cover all the pages on Internet.
理论上，这个系统能够覆盖互联网上的所有页面。
In theory all this is possible.
理论上这一切都是可行的。
In theory, Banks have six months to do this.
理论上，银行有六个月的时间去完成。
In theory, these two responsibility assignment principles seem easy to understand.
理论上，这两个职责分配原则似乎很容易理解。
In theory this should boost academic freedom.
理论上说，此举将促进学术自由。
In theory, their incomes should match.
理论上讲，他们的收入应当匹配。
Sort of makes sense, in theory.
理论上，似乎还挺有道理的。
专家说，理论上是安全的。
In theory, any food can cause an allergy.
理论上，任何食物都会引起过敏。
In theory, the solution to this misinformation already exists.
理论上，解决这种错误信息的方法已经存在。
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