Parenteral therapy is often used when oral intake is not possible.

当无法口服时，通常使用肠胃外的治疗。

It's still not possible to predict the occurrence of earthquakes accurately.

仍然不可能准确预测地震的发生。

That was not possible before.

这在以前是不可能的。

Not possible, as far as we know.

据我们所了解，这是不可能的。

But now; no. Ithas not possible.

但是目前不不妨。

I'm afraid that's not possible.

我恐怕不行。

I'm sorry, but it's just not possible.

抱歉，实在是爱莫能助。

Give up? You should. It's not possible.

放弃了吗？应该是的。这是不可能的。

Don't be ridiculous. That's not possible.

别丢人啦！那是不可能的。

In any case, it is not possible to log in.

在这两种情况下都不可能登录。