So why on earth should theory come along and say Well there's sort of a problem with communication?

那么，为什么理论非要同时存在并强调,交流方面出了一些问题？

youdao

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。

《牛津词典》

youdao

His theory was that the devices and body should remain firm, allowing the strings to vibrate longer and sustain a sound.

VOA: standard.2009.08.14

That would mean that companies should try to push their debt-equity ratio up as high as possible given that theory.

这个理论意味这公司将,尽力提高负债权益比

耶鲁公开课 - 金融市场课程节选

And that we have to ask ourselves,Well, what should the personality theory say about a case like that?

这时我们必须问自己，对这样的案例，人格理论该怎么解释呢？

耶鲁公开课 - 死亡课程节选

This shift to floating exchange rates should in theory have reduced the need to hold reserves.

ECONOMIST: Intervention: divine or comic?

This should in theory have produced enormous sums for the rich and much less for the poor.

ECONOMIST: A hard task is over: hard questions remain

This disposal process should in theory have no correlation with the Special Liquidator valuation and disposal process or indeed the Department of Finance.

FORBES: Euro Exit Scenarios