They might have to be formulated as very small steps, in order to do that, but you could.

他们那被构造出来，这些过程必须很小，这好像很难，但实际上是可以做到的。

麻省理工公开课 - 热力学与动力学课程节选

There may be circumstances under which it's the case but it's often difficult to control.

可能在某些环境下可以做到,但是通常情况下很难控制。

麻省理工公开课 - 热力学与动力学课程节选

We respnded aggressively, very aggressively on a lot of different occasions, and it was the kind of crisis that is just hard to keep control of. Ultimately we did.

我们的应对措施很强势，非常强势,在很多情况下都是如此，这次危机是,很难控制的，但最终我们做到了。

普林斯顿公开课 - 国际座谈会课程节选

comes from flawed reports of what people eat, because in order to know what people eat you have to ask them, and even if people are really trying hard to be truthful, it's not the easiest thing to do.

这些信息来自于关于人们饮食缺陷的报告,因为你必须询问人们,吃了什么,尽管人们会尽量实事求是,但这很难做到

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

just being able to keep saying from a person's perspective which is very hard to see when you get very tense and very defensive. And it's just so good for me to have have someone like Saed especially with Saed personally, just to have that gate.

就是能够,从一个个人的角度聊问题,而如果你很紧张就很难做到这一点,很有戒备心的时候就很难，所以我能够,有Saed是非？牡？,有这扇门。

普林斯顿公开课 - 人性课程节选