I don't think you realise the gravity of the situation.

我认为你没有意识到形势的严重性。

《牛津词典》

Cultivating such qualities will help you realise your full potential.

培养这样的品质将有助你充分发挥你的潜力。

youdao

Once you do the calculations, you realise that the scrap in your hand is a very exciting discovery.

一旦你进行计算，你就会意识到你手中的这个废料是一个令人非常兴奋的发现。

youdao

But after a while standing there you realise they are not asking for anything at all.

BBC: Honduras's child killings

But when you study the problem, you realise it's immensely hard to do this.

BBC: Applicants wanted for a one-way ticket to Mars

So when it finishes, it's a shock and you realise that you should have prepared better.

BBC: Young rugby league stars told to prepare for retirement