Try to imagine how frustrating his life must be.

你试想一下他的生活是多么沮丧啊。

Moreover much corporate spying can be from the point of view of those being spied on frustratingly fuzzy.

此外，从被监视者的角度来看，许多企业间谍活动可能沮丧模糊。

Technological progress is often frustratingly slow and littered with false promises and mistaken assumptions about what people want.

技术进步通常沮丧缓慢，并且充斥着虚假的承诺和对们需求的错误假设。

Even then the next few weeks and months are almost certain to be frustrating, dangerous and messy.

不过即便如此，未来几周甚至几月都会毫无疑问沮丧、充满危险且混乱不堪。

And the other is that many students learning about groups for the first time can find them frustratingly opaque, I know I did.

另一个是， 许多第一次习群体的生会发现它们沮丧不透明，我知道我确实如此。