如果我们确实知道这些情况,我们又是如何得知的呢?
I know for a certainty that the company has been bought up.我确实知道公司已经被人收购了。
I was obliged to admit that I did know it for a certainty, and I said to myself, 'Pip, what a fool you are!可是我又不得不承认她一定会带给我不幸。我在心中暗暗责备自己:“皮普,你是多么愚蠢啊!”