It is just simply an impossibility, unfortunately.

不幸的是，这是不可能的。

No need to add that my being happy in Forks is an impossibility.

我在福克斯会感到高兴那是不可能的事情。

We laughed together at the idiocy and sheer impossibility of such a moment.

然后我也大笑起来。我们一起为这种白痴的，全无可能的行径大笑了许久。

But a good career is an impossibility, so that's not going to work.

但是没有还不错的事业，所以这个行不通。

But it doesn't jump out at us, at least, that that should be an impossibility.

不过至少这不能说明，假死是不可能的事情。

'But how can we gain your freedom? You know very well that you ask an impossibility.'

'可是我们怎么能够恢复你们的自由呢？你要知道，你的要求是绝对办不到的事情。'

It could also be used to show impossibility.

它还可以用来表示不可能。

Deceit, according to him, was an impossibility in the case of one trained to observation and analysis.

根据作者的说法，对于一个在观察和分析上素有锻炼的人来说，欺骗是不可能的事。

It can also be used to show possibility and impossibility.

它也可以用来表示可能性和不可能。

Not just on the impossibilities, on the terrible, but on the possibilities, the wonderful.

不再对无奈可悲的处境耽耽于怀，而是专注于各种可能和美好的事物。