In fact, objects with mass, be they cars or neutrinos, can't reach the speed of light because they would need infinite energy to do so, according to the theory.

事实上，对象具有质量，根据爱因斯坦的理论，不管是人们的汽车，还是中微子，都不可能达到光的速度，因为它们要这样做就需要无限大的能量。

youdao

By contrast, general readers in Asian countries never had any need for the doorway of literary theory when they read my fiction.

相比之下，亚洲国家的普通读者在读我的小说时则从不需要经过任何文学理论的大门。

youdao

A "Worm vs. Wealth" theory is the Yang to the Yin of the Hygiene Hypothesis: Maybe we need more exposure to parasites to balance our reduced exposure to bacteria and viruses.

“蠕虫和富裕”理论是“卫生假说”的阴阳两个方面。也许我们真该多接触点寄生虫，来平衡一下我们越来越少接触细菌和病毒的状况。

youdao

So the moral here, again, is whenever you're doing an implementation of a simulation, you do need to have some underlying theory about the model.

所以这里的寓意还是,不管你在做什么东西的仿真程序，你需要有一个,模型的底层程序。

麻省理工公开课 - 计算机科学及编程导论课程节选

It could be called something which is a kind of pleasure and which therefore could be subsumed under the pleasure principle and would obviate the need for a theory of the death drive as Freud develops it in Beyond the Pleasure Principle.

可它也可看作是一种快乐,所以可以被归结到快乐原则中去,并且排除了弗洛伊德在《超越快乐原则》中阐述的,死亡驱动所需的理论基础。

耶鲁公开课 - 文学理论导论课程节选

And if we are not willing to accept that implication, it seems as though we need to reject the soul theory of personal identity.

如果我们不愿,接受这种结论，似乎,我们就需要拒绝承认,人格同一性的灵魂论。

耶鲁公开课 - 死亡课程节选

In any case, general relativity directly contradicts quantum mechanics, the other great physical theory of the 20th century, so more and more precise tests need to be carried out to find out what cracks might exist in either theory.

ECONOMIST: A new satellite will test Einstein's magnum opus

Since legally the bosses only need the support of one union, Mrs Aubry, in theory, has no choice but to approve the accord.

ECONOMIST: France

Professor Shuji Hashimoto, director of the humanoid robotics centre at Waseda University in Tokyo, has a theory: robots need a solid dose of those Japanese manners (don't we all?) encompassed in the Japanese word kansei, which includes feelings, mood, intuitiveness and sensibility.

ENGADGET: Japanese prof thinks robots need emotional sensibilities